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71. 发明专利

JPS63125347A WIRE DOT HEAD 失效
公开(公告)号：JPS63125347A
公开(公告)日：1988-05-28
申请号：JP27076586
申请日：1986-11-13
申请人： SEIKO EPSON CORP , TOKUSEN KOGYO KK
发明人： KURASHINA MASAMITSU , KIMORI YOSHIO
IPC分类号： B41J2/25 , B41J2/26
摘要： PURPOSE:To enhance the strength of the connection part of a wire and a wire pin part, a wire speed and durability, by integrally molding the wire pin part and the wire, and setting the wt. of the wire pin part to the specific percentage by wt. of the wire and forming the wire pin part into an almost plate shape. CONSTITUTION:A frame 1 and a core 1a are integrally formed and a coil 2 is engaged with the core 1a. A coil press plate 8 is mounted on the frame 1 and an armature 3 having a plunger 4 connected thereto is pressed to the coil press plate 8 through the fulcrum thereof by a fulcrum press spring 7. A wire pin part 5a integrally molded along with a wire 5 is contacted with the leading end part of the armature 3 by the return spring 9 existing between a nose 10 and the wire pin part 5a. The wire 5 is guided by the nose 10 and wire guides 6a, 6b. When the diameter of the wire 5 is set to (d) and the thickness of the wire in part 5a is set to (t) by header processing, the relation of d>t is formed. The wt. of the wire pin part 5a is 10% or less by wt. of the whole of the wire and the wt. of the wire is reduced by 30% as compared with a conventional one.

72. 发明专利

JPS6356459A DOT PRINTER 失效
公开(公告)号：JPS6356459A
公开(公告)日：1988-03-11
申请号：JP19903586
申请日：1986-08-27
申请人： TOKYO TUNGSTEN KK
发明人： HENMI SHOJI , TSUKAHARA ICHIRO
IPC分类号： B41J2/25
摘要： PURPOSE:To increase motion speed required for shutting a dot pin and obtain the high speed operation of a printer by providing a dot pin of cemented carbide alloy pipe construction. CONSTITUTION:A dot pin 11 is formed with cemented carbide alloy pipe. When the pipe for dot pin has external diameter D and internal diameterd, the selected range of D is 0.15mm

73. 发明专利

JPS6330260A PRODUCTION OF PRINTING WIRE FOR WIRE TYPE IMPACT DOT HEAD 失效
公开(公告)号：JPS6330260A
公开(公告)日：1988-02-08
申请号：JP17480286
申请日：1986-07-25
申请人： SEIKO EPSON CORP
发明人： SAKAGAMI EIMATSU
IPC分类号： B41J2/25
摘要： PURPOSE:To prepare a low cost printing wire, by simultaneously forming a wire part and a wire pin part by bending processing using a piece of a material. CONSTITUTION:A wire material 31 is protruded from the mouth of a guide bush 32 by a necessary length, and tools (a)-(f) and a cutting tool 30 are arranged around the material 31. The tool (a) advances to bend the material at a right angle and retracts to the original position. Next, by the advance and retraction of the tools (b)-(e), the wire material 31 is bent into a quadrilateral so as to surround the center of said material 31 and the tools (f), (g) advance to press the material to form a circle around a wire. At last, the cutting tool 30 advances to cut off the wire from the material. By this method, a printing wire wherein a wire part and a wire pin part are combined and united is prepared.

74. 发明专利

JPS6330259A WIRE DOT HEAD 失效
公开(公告)号：JPS6330259A
公开(公告)日：1988-02-08
申请号：JP17480686
申请日：1986-07-25
申请人： SEIKO EPSON CORP
发明人： MIZUNO SHIGEKI
IPC分类号： B41J2/235 , B41J2/25 , B41J2/27
摘要： PURPOSE:To obtain uniform printing quality, by making the bending rigidity of a post stage printing wire larger than that of a front stage printing wire. CONSTITUTION:Front stage printing wires 17 and post stage printing wires 17' are inserted in a wire guide 23. The diameters of the wires 17, 17' are the same and the material quality of each wire 17 is constituted by using powder high-speed steel and material quality of a superhard system is used in each wire 17'. Because of this, the bending rigidity of the post stage printing wire 17', becomes larger than that of the printing wire 17. Therefore, the printing force of the front stage printing wire 17 and that of the post stage printing wire 17' become equal and uniform printing quality can be obtained. Further, since a large number of wire guides for the post stage printing wires 17' are unnecessary, cost reduction is achieved.

75. 发明专利

JPS639555A PRINTING HEAD 失效
公开(公告)号：JPS639555A
公开(公告)日：1988-01-16
申请号：JP15356786
申请日：1986-06-30
申请人： CITIZEN WATCH CO LTD
发明人： YASUNAGA MAKOTO , YOSHINO NOBUYUKI
IPC分类号： B41J2/25
摘要： PURPOSE:To contrive higher abrasion resistance, by providing a hard carbonaceous layer on at least a part or the entire surface of a metallic base material constituting a needle, with an intermediate layer therebetween. CONSTITUTION:In a printing head for a needle printer, at least a part or the entire part of a metallic base material constituting a needle 4 is coated with a hard carbonaceous layer, with an intermediate layer therebetween. Particularly, a tip part 4a and sliding parts 4b, 4c of the needle are object parts to be coated. The intermediate layer is made to have, for example, a two-layer construction 8a comprising a first layer 10 of chromium (Cr) or titanium (Ti) provided on the metallic base material 9 and a second layer 11 of silicon (Si) or garmanium (Ge) provided thereon. The hard carbonaceous layer 12 of an amorphous structure is provided on the Si (Ge) layer 11. The intermediate layer is preferably provided by vacuum deposition, ion plating, sputtering or vapor phase growth, while the hard carbonaceous layer is preferably provided by a plasma polymerization method.

76. 实用新型

JPS62187734U 失效
公开(公告)号：JPS62187734U
公开(公告)日：1987-11-30
申请号：JP7474286
申请日：1986-05-19
IPC分类号： B41J2/25 , B41J3/10

77. 实用新型

JPS6292030U 失效
公开(公告)号：JPS6292030U
公开(公告)日：1987-06-12
申请号：JP18313885
申请日：1985-11-28
IPC分类号： B21D41/02 , B41J2/25 , B41J2/305 , B41J3/10

78. 发明专利

JPS62130136A METHOD FOR MANUFACTURING HIGH-HARDNESS WIRE MATERIAL 失效
公开(公告)号：JPS62130136A
公开(公告)日：1987-06-12
申请号：JP27078285
申请日：1985-12-03
申请人： TOSHIBA CORP
发明人： SAITO HIROYUKI
IPC分类号： B23P13/00 , B41J2/25
摘要： PURPOSE:To make it possible to round the cut ends of high-hardness wires at a small radius of curvature in a short time, by charging a plurality of the high-hardness wires densely in a hollow protector, then by cutting the hollow protector by a predetermined length, and by polishing the cut surfaces of the wires. CONSTITUTION:A plurality of high-hardness wires 1 are charged in an aluminum hollow protector 2 by means of a vibrator. The hollow protector 2 having been charged with the plurality of high-hardness wires is pressed by a press unit 5 composed of a plunger 3 and a holder 4 so that the cross-sectioned shape thereof is deformed. Thereby, the wires 1 may be densely and firmly secured in a pipe 2 which is then cut into cut pieces having a predetermined length. Each cut piece is polished by emery papers in three grades. Since the wires are densely charged in the hollow pipe and are firmly secured, it is possible to satisfactorily round the cut ends of wires in a large amount within a short time.

79. 发明专利

JPS62118931A MANUFACTURE OF DOTTED WIRE AND DOTTED WIRE 失效
公开(公告)号：JPS62118931A
公开(公告)日：1987-05-30
申请号：JP25960185
申请日：1985-11-19
申请人： NIPPON SUPEESU TECHNOL KK
发明人： NAKAYAMA TETSUO , KUBO YOICHI
IPC分类号： B21F45/00 , B41J2/25
摘要： PURPOSE:To improve a durability and to reduce a cost by forming a dotted wire body with a high hardness material and by forming a spherical head at the tail end of the wire body through an electrical discharge of a laser beam, arc, etc. CONSTITUTION:A high hardness wire material 2 such as a cemented carbide, a high speed steel, etc., is worked into a shape with prescribed dimension to manufacture the dotted wire body. Then, the wire body is set vertically placing its tail end under which the tail end of the wire body 3 is heated to melt by the electrical discharge such as a laser beam, arc or electron beam emitted from a discharge terminal 6 just under. On this occasion, the electric discharge is finished at melting the tail end part into the spherical shape. In this way, the spherical head 5 on the tail end of the body 3 is formed. The head 5 and its neighborhood are improved in toughness by an aging effect and as the body 3 is made of the high hardness material, the durability of wire is improved and the production cost is reduced by simplifying the manufacture.

80. 发明专利

JPS62112756A PRINTING PIN FOR DOT PRINTER 失效
公开(公告)号：JPS62112756A
公开(公告)日：1987-05-23
申请号：JP25425985
申请日：1985-11-12
申请人： KOBE STEEL LTD
发明人： KUSAKA SADASHI , MACHIDA MASAHIRO
IPC分类号： C22C33/02 , B41J2/25 , C22C38/00 , C22C38/24
摘要： PURPOSE:To obtain the titled pin made of Fe base sintered alloy capable of achieving the weight reduction while satisfying characteristic required by printing pin, by adding prescribed quantities of C, W, Mo, Cr, V, TiC and regulating HRA hardness. CONSTITUTION:The titled pin is made of Fe base sintered alloy contg. by weight 6-11% W, 3-8% Mo (13

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