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1. 发明专利

JPS5845061A PLASTIC TYPE 失效
公开(公告)号：JPS5845061A
公开(公告)日：1983-03-16
申请号：JP14188181
申请日：1981-09-09
申请人： FUJITSU LTD
发明人： IMAOKA JIYUUTAROU , KOJIMA KIYOSHI , SATOU HIROAKI , SUZAWA HIROMITSU
IPC分类号： B41J1/30 , B41J1/00
摘要： PURPOSE:To prevent the edges of a plastic type from being destroyed and eliminate the necessity for plating the type by using a synthetic resin primarily composed of nylon resin as its base material, fiber like inorganic substance and pulverized inorganic substance as a material for forming plastic types. CONSTITUTION:A type 2 is formed by using 66 nylon resin 11 as a base material and mixing glass fiber 10 and pulverized silicone family inorganic substance 12. The type face 2a thus formed is durable for more than about 5 million times when it is used for a high speed serial printer, or is durable for more than 10 million times by 1 spoke. By the use of silicone family inorganic substance, the strength of the type 2 has been intensified and its resistance for crack has also been raised, therefore it is possible to lengthen the life of a plastic type without plating it.

2. 发明专利

JPS5957759A Preparation of type body 失效
标题翻译：类型体的制备
公开(公告)号：JPS5957759A
公开(公告)日：1984-04-03
申请号：JP16890982
申请日：1982-09-28
申请人： Fujitsu Ltd
发明人： IMAOKA JIYUUTAROU , KOJIMA KIYOSHI , SATOU HIROAKI
IPC分类号： B41J1/00 , B41J1/30
CPC分类号： B41J1/30
摘要： PURPOSE:To obtain a type body of high quality by such an arrangement wherein a heat preserving means is provided between a type molding unit and type holder molding unit in a metal mold for molding a type body and a type face is molded while a difference in temperature is maintained between those units. CONSTITUTION:A heater 5 is provided to correspond to the arrangement of type molding units 3, and in a lower mold 9, a heat pipe 7 is provided for cooling type holder molding units 4. Molding material injected through an injection hole 6 passes through molding units 4 cooled by the heat pipe 7 and flows into the type molding unit 3. Molding material reached the molding units 3 is processed at a high temperature and formed into a type element 1 of high density and molding material injected into the molding units 4 is processed at low temperature and formed into a type holder element which is less in deformation, distortion, warping, etc.
摘要翻译：目的：为了通过这样的结构获得高质量的型体，其中在用于模制型体的金属模具中的型式成型单元和型保持器成型单元之间设置有保温装置，并且模制型这些单位之间保持温度。构成：为了对应于成型单元3的配置而设置加热器5，在下模具9中设置有用于冷却型保持器成型单元的热管7.通过注射孔6注入的成型材料通过成型单元4由热管7冷却并流入型式成型单元3.到达模塑单元3的模塑材料在高温下加工并形成为高密度的型元件1，注入成型单元4的成型材料为在低温下处理，形成变形，变形，翘曲等变小的类型保持件

3. 发明专利

JPS57134590A PARTIAL PLATING METHOD 失效
公开(公告)号：JPS57134590A
公开(公告)日：1982-08-19
申请号：JP1945781
申请日：1981-02-12
申请人： FUJITSU LTD
发明人： IMAOKA JIYUUTAROU , KOJIMA KIYOSHI , SATOU HIROAKI , SUSAO HITEMITSU
IPC分类号： C25D5/02
摘要： PURPOSE:To prevent the entry of a treating soln. into a non-plating region part and to perform partial plating at a low cost by immersing only the plating region of an object to be plated covered with the non-plating region into the plating soln. thereby plating the same. CONSTITUTION:A motor 8 is coupled via a shaft 7 fitted with a plating article 5 above a plating soln. cell 1, and an electric power source E is connected to the other. A jig disposing a cathode 4 togehter with the motor 8 is provided to the shaft 7, and the article 5 having covers 6, 6 is fitted and set to the shaft 7 by means of said jig. Next, only the plating region part of the article 5 is immersed in a plating soln. 2, and the shaft 7 is rotated in an arrow direction by the revolution of the motor 8. As a result, the article 5 fitted to the shaft 7 is rotated at the same time, and during this time, the part requiring plating is plated. At this time, the entry of the soln. 2 into the part requiring no plating in the non- plating region is prevented by centrifugal force of revolution. It is also possible to accomplish this by a method of using anode 3 in order to improve the convection of the treating soln. for higher efficiency of the plating treatment.

4. 发明专利

JPS5796862A PLASTIC TYPE 失效
公开(公告)号：JPS5796862A
公开(公告)日：1982-06-16
申请号：JP17301480
申请日：1980-12-08
申请人： FUJITSU LTD
发明人： IMAOKA JIYUUTAROU , KOJIMA KIYOSHI , SATOU HIROAKI , YAMASHITA SHIGEO , SUSAO HITEMITSU
IPC分类号： B41J1/30 , B41J1/00
摘要： PURPOSE:To provide a plastic type for a serial printer with a high quality of printing and a longer life in which a metal plating is applied on the surface of a type molded with a nylon resin containing a glass fiber. CONSTITUTION:A layer plated with Cu-Ni, Ni-Co or the like at a thickness of 20-30mu is formed on the surface of a plastic type molded with a 66 nylon resin blended with 25-35wt% of glass fiber. Since the nylon resin is harder than the polyacetal resin heretofore used, the plated layer can be made thinner thereby enabling improvement in the durability of a type head, clearness of the printing, the printing alignment and the like.

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