METHODS FOR PRODUCING BICYCLE SADDLES

摘要

A method for producing a bicycle saddle including a cover, a shell and a filler. The method is carried out by a mold including upper part with a male portion and a lower part with a female portion, which are pin-jointed together. The method comprises the steps of preheating the mold to a predetermined temperature; opening the mold; treating a layer of release agent onto the surfaces of the male portion and the female portion; spraying a first layer of a first plastic material onto the surface of the female portion treated with the layer of release agent to form a cover; coupling a shell to the male portion; pouring a second layer of a second plastic material onto the female portion; closing the mold and holding it in the closed position a period of time to form the filler; opening the mold to remove the finished saddle.

主权项

1. A method for producing a bicycle saddle including a cover, a rigid or semi-rigid shell and a filler disposed between said cover and said shell, employing a mold having an upper part and a lower part, said upper part and said lower part being pin-jointed together to be removable between an open position and a closed position, said upper part having a male portion and said lower part having a female portion opposed to said male portion; said method comprising the steps of:
preheating said mold to a temperature in a range of about 30° C. and about 60° C.; opening said mold to said open position; treating a layer of release agent onto the surface of said male portion of said upper part and the surface of said female portion of said lower part; spraying a first layer of a first plastic material onto the surface of said female portion of said lower part treated with said layer of release agent to form a cover; detachably coupling a shell made of semi-rigid or rigid materials to said male portion of said upper part of said mold; pouring a second layer of a second plastic material onto said female portion of said lower part of said mold; closing said mold to said closed position and holding said mold in the closed condition a period of time to allow said second layer forming a filler between said shell and said cover formed by said first layer; and opening said mold to remove the finished saddle therefrom.