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AssigneeCitizen Watch Co., Ltd.
InventorsYukio Miya, Shigeru Kizaki, Osamu Sugiyama, Akiteru Hatayama, Yoshitsugu Shibuya, Mitsugu Enomoto, Koichi Naoi, Yuji Fukazawa, Takanori Nanya, Shotaro Shimizu, Hiroshi Tagawa
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A diamond-like carbon (DLC) film is formed on a portion of a reed blade in a high-speed loom which requires the highest wear resistance. When a stainless steel is used as the base material of the reed blade, the DLC film is formed through an intermediate layer comprising, e.g., a titanium carbide layer. Reed blades coated with a DLC film are arranged at the side portions of the reed where wear progresses quickly, while reed blades coated with hard films requiring a relatively low cost, or non-coated reed blades, are arranged in the central portion of the reed, thereby uniforming the blade wear throughout the entire reed. The reed is suitable to many types of fibers, ranging from natural to synthetic and new material fibers.
A reed for a high-speed loom, in which a large number of reed blades comprising thin metal plates are arranged parallel to each other at predetermined gaps and are fixed and held with a frame comprising right and left side master blades and upper and lower side metal portions, a plurality of reed blades adjacent to said master blades forming a first group and a plurality of reed blades adjacent to said first group forming a second group characterized in that said reed blades of said first group including a maximum wear portion are coated with DLC films, and said reed blades of said second group are coated with hard films of a different type than said DLC films.
A reed for a high speed loom, said reed having a plurality of reed blades arranged substantially parallel to each other in a single file with two outer groups and a middle group wherein some of said reed blades are subjected to greater wear during use than others of said reed blades, only said greater wear reed blades having a DLC film thereon, and said middle group having a hard film thereon comprised of a material other than DLC.
A reed for a high speed loom, said reed having a plurality of reed blades arranged in single file and substantially parallel to each other, said reed blades comprising two outer groups surrounding a middle group, each of said reed blades in said outer groups having a portion which receives heavier wear during use than other portions thereof, and a DLC film covering only said heavier wear portions to thereby increase the useful life of said reed, others of said reed blades in said middle group not having the DLC covering.
A reed for a high speed loom, said reed having a plurality of reed blades arranged substantially parallel to each other at predetermined intervals and each reed blade having a thin metal plate with a stainless steel base metal, said reed blades being secured to a frame having right and left side master blades and upper and lower side metal portions, said reed including a plurality of reed blades adjacent said master blades forming a pair of outside reed blade groups and a plurality of reed blades adjacent each of said pair of outside reed blade groups forming a pair of inside reed blade groups, each blade of said outside pair of reed blade groups being coated with a DLC film on at least a portion including a maximum wear portion thereof and each blade of said inside reed blade groups having no DLC film thereon such that a wear amount of an outermost reed blade of said outside reed blade groups substantially corresponds to a wear amount of an outermost reed blade of said inside reed blade groups.
Dependencies are inferred from the claim text.