Abstract: A method for manufacturing a light-weight waterproof shoe/boot includes steps of cutting waterproof leather, arranging and stacking vamp section, forming through hot pressing, sewing heel section, hot-pressing heel section, combining midsole, and injecting sole to accompany fabrication of a waterproof shoe/boot, in which fabrication of a vamp section and a shaft section is accomplished through hot pressing the waterproof leather that is coated with a hot-melt adhesive; a sewing line of a heel section is covered by a heel water-resistant plate that is attached thereto through hot pressing to provide an effect of waterproofness; and a sewing line between a midsole and the vamp section is covered by an upper rim of a sole to achieve an effect of waterproofness. The vamp section and the shaft section are made with the waterproof leather that is light and thin so that the weight of the waterproof shoe/boot is greatly reduced.

Abstract: A method for manufacturing a light-weight waterproof shoe/boot includes steps of cutting waterproof leather, arranging and stacking vamp section, forming through hot pressing, sewing heel section, hot-pressing heel section, combining midsole, and injecting sole to accompany fabrication of a waterproof shoe/boot, in which fabrication of a vamp section and a shaft section is accomplished through hot pressing the waterproof leather that is coated with a hot-melt adhesive; a sewing line of a heel section is covered by a heel water-resistant plate that is attached thereto through hot pressing to provide an effect of waterproofness; and a sewing line between a midsole and the vamp section is covered by an upper rim of a sole to achieve an effect of waterproofness. The vamp section and the shaft section are made with the waterproof leather that is light and thin so that the weight of the waterproof shoe/boot is greatly reduced.

Abstract: A method for manufacturing a rubber boot having a foamed layer includes a first step of coating of boot-shaped lining sheath and a second step of rubber injection. A boot-sole-section coating layer, a boot-vamp-section coating layer, a boot-heel-section coating layer, and a boot-shaft-section coating layer that are coated on a boot-shaped lining sheath, after cured, provide a hardened surface and a stiff support structure among the coating layers that help melted rubber to efficiently flow and fill up runners inside a mold to thereby prevent defects from being formed in a rubber layer formed on a surface of a rubber boot so manufactured.

Abstract: A method of producing a foamed footwear includes the steps of wearing around a footwear last with an inner covering housing, coating a first partition layer made of mixed rubber material on an outer surface of the inner covering housing, covering on a foaming raw material and an outer decorating fabric, attaching to the bottom side of the footwear last with a footwear sole, attaching to an outer surface of the outer decorating fabric with necessary reinforcing elements and necessary decorating elements, and heating in a vulcanization reactor. The foaming raw material undergoes a foaming reaction process, so that the footwear sole, the necessary reinforcing elements, and the necessary decorating element undergo a vulcanizing reaction process to enhance rubber properties thereof. Both of the inner surface and outer surface of the footwear has an aesthetic appearance. The production efficiency is increased and unnecessary waste of raw material is avoid.

Abstract: An auxiliary device of a monocycle has an auxiliary body connected to a monocycle. The main fork of the monocycle has a main sleeve. A detachable auxiliary body is connected to the main sleeve. Thereby, the auxiliary body can be installed to or detachable from the monocycle. The auxiliary body is mainly formed by a front head and a frame tube. The front head has a handle frame, a sub-wheel body and a sub-fork. The frame tube is connected to the monocycle. A front end of the monocycle is installed with a sub-sleeve which is formed at an upper end of the sub-fork so as to be formed as a monocycle with an auxiliary wheel.

Abstract: An auxiliary device of a monocycle has an auxiliary body connected to a monocycle. The main fork of the monocycle has a main sleeve. A detachable auxiliary body is connected to the main sleeve. Thereby, the auxiliary body can be installed to or detachable from the monocycle. The auxiliary body is mainly formed by a front head and a frame tube. The front head has a handle frame, a sub-wheel body and a sub-fork. The frame tube is connected to the monocycle. A front end of the monocycle is installed with a sub-sleeve which is formed at an upper end of the subfork so as to be formed as a monocycle with an auxiliary wheel.

Abstract: A mini bicycle in which the chain stays are respectively pivoted to a bracket at the seat tube to support the pedal-driven chain transmission mechanism. The seat tube extends across a rear part of the upper tube and connected to the rear end of the lower tube to hold the saddle stem, enabling the saddle stem to be vertically adjustably locked at the desired elevation. The springing is coupled between downwardly extended rear lugs of the upper tube and the chain stays, and the handlebar assembly is vertically adjustably coupled to the head tube and locked at the desired elevation.

Abstract: A bicycle downtube processing machine includes a drill unit for drilling holes on a downtube for a bicycle frame, first cutting unit for cutting the right end of the downtube by punching, a second cutting unit for cutting a downwards bevel edge on the left end of the downtube by punching, a third cutting unit for cutting an inwardly curved top edge on the left end of the downtube by punching, a first locating unit for moving the downtube to the processing position for processing, a second locating unit for holding down the downtube in the processing position, and a control circuit for controlling the operation of the aforesaid units.