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31. 发明专利

JPH0250871A THERMAL TRANSFER RECORDER 失效
公开(公告)号：JPH0250871A
公开(公告)日：1990-02-20
申请号：JP20184788
申请日：1988-08-15
申请人： HITACHI LTD
发明人： MIYAGAWA HIROTO , WATANABE MICHIHIRO , AOYANAGI MASAHISA , HARA HIDEKAZU
IPC分类号： B41J17/32
摘要： PURPOSE:To load ink sheet rolls rapidly and certainly by providing relative position holding members which hold a relative position of a pair of ink sheet rolls made of a pay-out roll and a take-up roll so that it is substantially coincident with a relative position of roll mounting parts of a recorder. CONSTITUTION:Respective ink sheet rolls are replaced by fitting holes of ink sheet loading parts 1 disposed on the both sides of a pay-out roll 2 and a take-up roll 3 to projected parts of device-side bearing parts 5a, 5b corresponding to the respective rolls. Relative position holding members 6a for securely holding a relative position of the respective rolls are integrally formed on the loading parts 1 of the rolls so as to hold substantially the same position as a relative position between the device-side bearing parts 5a, 5b. The material and cross sectional shape of the connecting parts between the relative position holding member 6a and the loading parts 1 of the roll is determined so as not to break by the load of the ink sheet roll under its own weight but to cut off the member 6a for an easy disposal after the loading. The relative position holding members 6a prevent the pay-out roll 2 and the take-up roll 3 from being disconnected during a loading operation, thus inhibiting an ink sheet 7 from being payed out more than needed.

32. 发明专利

JPH0250870A THERMAL TRANSFER RECORDER 失效
公开(公告)号：JPH0250870A
公开(公告)日：1990-02-20
申请号：JP20184988
申请日：1988-08-15
申请人： HITACHI LTD
发明人： AOYANAGI MASAHISA , WATANABE MICHIHIRO , MIYAGAWA HIROTO , HARA HIDEKAZU
IPC分类号： B41J15/04 , B41J17/30 , B41J25/312 , B41J25/316
摘要： PURPOSE:To prevent an unsatisfactory printing caused by the wrinkle of an ink film by a method wherein a guide roller and a separator roller are movably mounted on a thermal recording head support fitting so as to come into pressure contact with a platen roller. CONSTITUTION:The clockwise rotation of an action lever 1 brings recording paper 7 disposed on a platen roller 8 into contact with an ink film 6. Moreover, the film 6 and the recording paper 7 come into contact with a guide roller 10 and a separator roller 12, and these rollers bring the film 6 and the recording paper 7 into pressure contact with the roller 8 while being pushed outward by the roller 8. In this state, a printing is performed by the heating of a heating resistor element group 4 and the rotation of the roller 8, but the film 6 is never subjected to the other force than a frictional force with the element group 4 generated with the rotation of the roller 8. Therefore, an unsatisfactory printing caused by the elongation of the film 6 after heating can be prevented. Moreover, an unsatisfactory printing caused by wrinkles can be avoided because the film 6 and the recording paper 7 are guided to the element group 4 by a guide roller 11.

33. 发明专利

JPH0250866A THERMAL RECORDING APPARATUS 失效
公开(公告)号：JPH0250866A
公开(公告)日：1990-02-20
申请号：JP20185088
申请日：1988-08-15
申请人： HITACHI LTD
发明人： AOYANAGI MASAHISA , WATANABE MICHIHIRO , HARA HIDEKAZU
IPC分类号： B41J11/00 , B65H5/06 , B65H20/02 , H04N1/00
摘要： PURPOSE:To obtain good image quality by using a worm and a worm wheel as a means for decreasing the rotational speed of a stepping motor to transmit said speed to a pressure contact roller. CONSTITUTION:Thermal recording paper 4 is inserted between the heating resistor element group provided to a thermal recording head 1 and a pressure contact roller 3. The rotatory power of a stepping motor 5 is transmitted to a worm wheel 7 through the worm 6 mounted on a stepping motor shaft 5a and further transmitted to the pressure contact roller 3 coaxially mounted in coaxial relation to the worm wheel 7. A bearing 8 is provided in order to prevent the shaking of the stepping motor shaft 5a. As a result, since the rotary state of the stepping motor 5 can be made almost synchronous to that of the pressure contact roller 3, printing inferiority generated by feed irregularity is eliminated and good image quality can be obtained.

34. 发明专利

JPS6449676A THERMAL RECORDER 失效
公开(公告)号：JPS6449676A
公开(公告)日：1989-02-27
申请号：JP20632187
申请日：1987-08-21
申请人： HITACHI LTD
发明人： AOYANAGI MASAHISA , NAGATA TATSUYA , WATANABE MICHIHIRO , HARA HIDEKAZU , YAMASHITA KYOICHI
IPC分类号： B41J11/20 , B41J2/32 , B41J25/312 , B41J25/316
摘要： PURPOSE:To facilitate positioning of a pressure roller to a thermal head and to prevent an unsatisfactory recording caused by the vibration of the thermal head, by pressing a head substrate towards the pressure roller and further pressing the head substrate in the tangential direction of the pressure roller in contact with the thermal head. CONSTITUTION:On a center part between a head substrate 4 and a guide body 2, compression coil springs 7 are provided as pressing means. Between a tangential force pressing spring receiving part 17 provided on an actuating lever 1 and a spring receiving part 18 provided on the head substrate 4, compression coil springs 19 are provided as tangential force pressing means. In the condition that a bearing 13 of a roller shaft 15 of a pressure roller 14 is engaged to a guide groove 12, the gap between the guide groove 12 and the bearing 13 and the gap between the bearing 13 and the roller shaft 15 are held in one direction with a fixed force. As a result, the fusion of a thermal head 9 to a thermal recording paper 16 and a force produced by the peeling in a thermal recording can be inhibited and the thermal head 9 is prevented from rocking; thus, an unsatisfactory printing such as the non-printing in a printed image can be prevented.

35. 发明专利

JPS5274518A LOW ALLOY MEDIUM CARBON CAST STEEL FOR NITRIDING 失效
公开(公告)号：JPS5274518A
公开(公告)日：1977-06-22
申请号：JP15055675
申请日：1975-12-19
申请人： HITACHI LTD
发明人： YAMADA TOSHIHIRO , AOYANAGI MASAHISA
IPC分类号： C22C38/00 , C22C38/04 , C23C8/38
摘要： PURPOSE:To obtain the captioned alloy whose surface hardening may be made by ion nitriding treatment by adding a small quantity (0.8-3%) of Si to carbon steel specified in JIS.

36. 发明专利

JP2001177786A DISPLAY DEVICE 失效
公开(公告)号：JP2001177786A
公开(公告)日：2001-06-29
申请号：JP35549699
申请日：1999-12-15
申请人： HITACHI LTD
发明人： AOYANAGI MASAHISA , HATTORI TOSHIO , TOMIOKA MIYOSHI
IPC分类号： H04N5/64 , B60R11/02 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To secure the visibility and the strength reliability of a display device with a simple constitution. SOLUTION: The display device is attached to pole braces which can be moved in vertical and horizontal directions, and these pole braces are provided with buffer members of which the resistance to movement is increased according as the extent of movement of the display device is increased. Oscillation and impacts acting on the display device from the outside are absorbed by this constitution to secure the visibility and the strength reliability.

37. 发明专利

JPH0924628A PRINT HERD 失效
公开(公告)号：JPH0924628A
公开(公告)日：1997-01-28
申请号：JP17704495
申请日：1995-07-13
申请人： HITACHI LTD
发明人： AOYANAGI MASAHISA , MATSUNO JUNICHI , SHIMOJO TETSUJI , SHIOYAMA MASATSUGU , ONO ATSUSHI
IPC分类号： B41J2/28
摘要： PROBLEM TO BE SOLVED: To provide a cancelling excitation type print head, which is employed in an impact type printer and can realize miniaturization, weight reduction, and cost reduction. SOLUTION: In the print head, a magnetized armature 2 is attracted by a magnetized core pole 11 against the deflecting force of an elastic member 3. By cancelling the attracting force acting between the core pole 11 and the armature 2 with the magnetic lines generated by an exciting coil 13, the deflecting force of the elastic member 3 is released, so that printing is performed with a dot wire 1 mounted on the armature 2. In the head, a magnetic shunt 14 magnetically connecting a yoke 7 and the core pole 11 is provided.

38. 发明专利

JPH08133542A IMAGE READER-RECORDER 失效
公开(公告)号：JPH08133542A
公开(公告)日：1996-05-28
申请号：JP28022094
申请日：1994-11-15
申请人： HITACHI LTD
发明人： FUKUDA HIROMITSU , SAKAI KAZUO , SATOU KAZUYASU , AOYANAGI MASAHISA , SHIMIZU AKIRA , NARUI YOICHI
IPC分类号： B41J15/04 , B41J15/16 , B65H23/34
摘要： PURPOSE: To enable use of machine glazed paper using a small core, and downsize a device by excellently removing a curl habit particularly at small diameter time of the machine glazed paper. CONSTITUTION: Among internal angles of a triangle formed of a tip end part of a projecting part 3 on the upstream side in the recording paper carrying direction, a tip part of a projecting part 4 on the downstream side in the recording paper carrying direction and a pressurizing contact part of a platen roller 5 and a recording head 6, an internal angle of the tip part of the projecting part 3 on the upstream side is formed as an obtuse angle. An interval of a recording paper carrying passage formed of a plane where the projecting part 3 on the upstream side in the recording paper carrying direction and the projecting part 4 on the downstream side in the recording paper carrying direction are opposed to each other, is made narrower than the other.

39. 发明专利

JPH07247045A RECORDING DEVICE 失效
公开(公告)号：JPH07247045A
公开(公告)日：1995-09-26
申请号：JP3672994
申请日：1994-03-08
申请人： HITACHI LTD
发明人： AOYANAGI MASAHISA , SAKAI KAZUO , KANDOU KAZUYASU , FUKUDA HIROMITSU , KIYONO TASAKU
IPC分类号： B41J11/66 , B41J11/00 , B41J15/16 , B41M5/26 , B65H23/34
摘要： PURPOSE:To put curl straightening mechanism for thermosensible recording paper in action and release it by a simple mechanism and improve the filing performance of the thermosensible recording paper by relaxing the thermosensible recording paper by the reverse rotation of a pressure contact roller after the termination of recording. CONSTITUTION:A recording part 1 is provided with thermosensible paper 8 wound in roll shape, a thermal recording head 9, a pressure contact roller 10 for conveying the thermosensible paper 8 in the pressure contact state to the thermal recording head 9, and a recording paper tray 11 for holding the thermosensible paper 8. The recording part 1 is further provided with an inverse warping part 12 for imparting inverse warp in order to straighten the curl of the thermosensible recording paper 8, a guide member 13 for guiding the recording paper 8 to the inverse warping part 12, a recording system gear 15 for rotatory- conveying the pressure contact roller 10, a motor 17, an edge 18a for manually cutting off the thermosensible recording paper 8 after recording, and the like. After the termination of recording, the pressure contact roller 10 is reversely rotated to separate the thermosensible recording paper 8 from the inverse warping part 12, so that the thermosensible recording paper 8 separated from the inverse warping part 12 hangs down loose by its own weight so as to be prevented from getting into a folding habit after receiving the mending of a strong bent part in the inverse warping part 12.

40. 发明专利

JPH06321375A AUTOMATIC PAPER FEEDING DEVICE, AND FACSIMILE DEVICE AND COPYING MACHINE WITH ITS AUTOMATIC PAPER FEEDING DEVICE 失效
公开(公告)号：JPH06321375A
公开(公告)日：1994-11-22
申请号：JP8429593
申请日：1993-04-12
申请人： HITACHI LTD
发明人： FUKUDA HIROMITSU , HAGIWARA NORIAKI , SATOU KAZUYASU , KIYONO TASAKU , OKI KATSUO , AOYANAGI MASAHISA , OGA KIMIO , SHIMIZU AKIRA , NARUI YOICHI , SUZUKI TSUGIO
IPC分类号： B65H1/04 , B65H3/52 , B65H31/00 , G03G15/00 , H04N1/00
摘要： PURPOSE:To prevent documents from being double-fed, fed aslant, and slipped when multiple documents are put on a sheet feeding tray and sheet feeding guide, in an automatic paper feeding device which separates and transfers the documents by pressing a separation pad against a document transfer roller. CONSTITUTION:A separation pad 2 is pressed against a document transfer roller 3 through a projected part 8 provided on the separation pad 2 side of a separation pad holder 1. The projected part 8 is located approximately at the lateral contact width center position of the separation pad 2 with the document transfer roller 3 in the direction of normal line to the separation pad 2 to transfer a pressing force N applied to the separation pad holder 1 by a spring 5 efficiently to a separation part.

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