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公开(公告)号：JPH01200238A
公开(公告)日：1989-08-11
申请号：JP2416388
申请日：1988-02-04
Applicant: CANON KK
Inventor： MAMIYA TOSHIHARU
IPC: G03B9/16
Abstract: PURPOSE:To obtain a shutter whose precision is stable by providing a pair of same- formed shutter curtains arranged symmetrically with each other in the same axial line direction, a turnable supporting shaft and a pair of springs which are movably fitted on a shaft to energize the curtains in one and the same direction and symmetrically arranging the springs in putting the curtains between them. CONSTITUTION:A pair of same-formed shutter curtains, a 1st curtain 5 and a 2nd curtain 6, are symmetrically arranged and turnably supported to the shaft 7 on the base plate 3. Spring hooks 8 and 9 are rotatively fitted on the both ends of the shaft 7 and detent members 12 and 13 are fixed between pauls on an outer peripheral on the sheet metal 3 so as to prevent the clockwise rotation of the curtain hooks 8 and 9. The springs 10 and 11 energize the 1st curtain 5 and the 2nd curtain 6 counterclockwise, centering around the shaft 7. One end of the spring 10 is engaged with the spring hook 8 and the other is engaged with the pin 5b of the 1st curtain 5 so as to energize the tail part 5a of the 1st curtain counterclockwise. The spring 11 energizes the tail part 6a of the 2nd curtain in the same direction as above. Since the speed characteristics of the 1st curtain and the 2nd curtain can almost completely coincide with each other with such a constitution, the exact precision of exposure can be obtained.
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公开(公告)号：JPH01200236A
公开(公告)日：1989-08-11
申请号：JP2416588
申请日：1988-02-04
Applicant: CANON KK
Inventor： MAMIYA TOSHIHARU
IPC: G03B9/08
Abstract: PURPOSE:To obtain a shutter device whose structure is simple by making a shutter curtain light and making a stopper absorb the motional energy of the shutter curtain completely. CONSTITUTION:An electromagnet 20 attracts an armature 22a according to a shutter release signal and a member 22 turns against a spring 26, then an engaging part 22b presses a spring hook 23a and turns a locking member 23 so as to disengage leading edge of the member 23 from the tailing part 5a of a 1st curtain 5. The 1st curtain 5 is rapidly turned with centering around a shaft 7 counterclockwise by a spring 10 and the turning of the 1st curtain stops at the time when a projecting pin 5b of the tailing part 5a of the 1st curtain 5 collides with the buffering body 14a of the stopper 14. Since the pin 5b collides with the soft buffering body 14a, it does not spring back, so that the motional energy of the 1st curtain is completely absorbed as the deformation energy of the stopper 14 with the buffering body 14a and the motional energy of the fine turning of the stopper 14 and the 1st curtain immediately stops without vibration. A brake mechanism, etc., are not necessitated and noises by vibration is reduced.
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公开(公告)号：JPS63287155A
公开(公告)日：1988-11-24
申请号：JP12113387
申请日：1987-05-20
Applicant: CANON KK
Inventor： ISHIKAWA TADASHI , MAMIYA TOSHIHARU , OKINO TADASHI , SUNOCHI AKIO
Abstract: PURPOSE:To widen the operation area of remote control by providing a photodetection section of a wireless remote control signal to a part of a support member. CONSTITUTION:A mounting base 2 and a monitor display section 6 are fixed to a fixed base 15. The fixed base 15 supports a camera 3 vertically slidably together with a horizontal support member 4 and a vertical support member 5 via an elevating/descending base 11. In moving the camera 3 vertically via the base 11, the pickup range on the mounting base 2 is varied. Moreover, the camera 3 is moved in the vertical plane with respect to the horizontal support member 4. The photodetection section 7 of the remote controller consists of a photodetection sensor 7c and photodetection windows 7a, 7b and fixed to the rotary support shaft of the camera and in reading an original, the reader senses it via the window 7a and in reading a blackboard, the reader senses via the window 7b.
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公开(公告)号：JPS62152885A
公开(公告)日：1987-07-07
申请号：JP29721985
申请日：1985-12-27
Applicant: CANON KK
Inventor： MAMIYA TOSHIHARU
Abstract: PURPOSE:To reduce variations in load on scanning of a carriage and stabilize the scanning of the carriage, by supporting at least one end part of a flexible member by a mount member which is turnably supported. CONSTITUTION:When an ink jet head 1 is located at a position A, a tube 2 is bent with a large radius of curvature, so that the head 1 and a carriage 4 receive little force. When the head 1 is moved from the position A toward a position C and is moved past certain point, the radius of curvature of he tube 2 tends to become smaller, thereby generating a force. Under this force, a second tube mount member 15 is turned counterclockwise, so that the radius of curvature of the tube 2 is maintained substantially at the initial value. Therefore, most of the fore generated by the tube 2 is absorbed. Even when the head 1 is moved to the position C, the radius of curvature of the tube 2 is substantially the same as that at the position A due to the turning of the member 15, so that the head 1 and the carriage 4 receive little force.
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公开(公告)号：JPS6274848A
公开(公告)日：1987-04-06
申请号：JP21270485
申请日：1985-09-27
Applicant: CANON KK
Inventor： ISHIKAWA TADASHI , WATANABE NOBUTAKA , MAMIYA TOSHIHARU , ENDO TAKASHI
Abstract: PURPOSE:To mount and demount a paper feed cassette safely, by actuating the paper feed cassette in association with movement of a paper feed roller and preventing the paper feed cassette from being demounted at least when the paper feed roller is at a paper feed position. CONSTITUTION:When a paper feed roller 120a slides from a refuge position to a paper feed position, a ground plate 136 turns counterclockwise about a shaft 136a so that a hook portion 156b moves upwardly, which causes slide members 53 and 54 slide in the right direction through a wire 51. Since a stopper 54a of the slide member 54 moves to just under a knob attaching unit 31b of a cassette latch release lever 31 at this state and the knob attaching unit 31b abuts against a stopper unit 54, the release knob cannot be slided downwardly so that the latch of the cassette 17 can not be released. More specifically, since the construction is such that the paper feed cassette can not be mounted or demounted when a paper feed roller 120a is at a recording paper feed position, an accident caused by mounting or demounting the cassette by mistake is avoided.
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Patent Agency Ranking
公开(公告)号：JPS60204566A
公开(公告)日：1985-10-16
申请号：JP6495484
申请日：1984-03-30
Applicant: CANON KK
Inventor： WATANABE NOBUTAKA , MAMIYA TOSHIHARU , ISHIKAWA TADASHI , ENDOU TAKASHI , MORIYAMA JIROU
Abstract: PURPOSE:To make a recorder compact, by setting the distance between the discharge position of a discharge roller and a recording position to be shorter than the length of recording paper, and by keeping the discharge roller away from the discharge position while recording is being performed, in the paper conveyance line of the recorder. CONSTITUTION:The length of a discharge conveyance passage extending from the discharge position of a discharge roller 124 to a recording position between a platen 101 and a head 200 is set to be shorter than that of recording paper P. The discharge roller 124 is kept away from its discharge position while recording is being performed by a recording means 200. When the recording paper P is separated from the platen 101 and a pinch roller 104 after the recording, the separation is detected by a switch SW2 to return the discharge roller 124 into the discharge position to discharge the recording paper by the rotation of the roller. According to this constitution, a recorder is made compact, and the quality of printing of an image, characters or the like is kept high.
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公开(公告)号：JP2019020539A
公开(公告)日：2019-02-07
申请号：JP2017137511
申请日：2017-07-14
Applicant: CANON KK
Inventor： OKADA YUTA , NAKAHATA HIROSHI , MAMIYA TOSHIHARU , HOSOI SHINICHIRO
Abstract: 【課題】一つの光源ユニットからの光束を分割し異なる二つの被走査面を走査する光走査装置において面発光レーザを用いる際に光量検知手段により装置が大型化してしまう。【解決手段】二つの走査光路に分割される前にアパーチャを配置し、分割後の光束径を略等しくしたうえで光検知手段を光源ユニットと対向側にのみ配置し分割後の入射光の一方の光線を用いて光量検知を行う。【選択図】図5
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公开(公告)号：JP2002350765A
公开(公告)日：2002-12-04
申请号：JP2001154467
申请日：2001-05-23
Applicant: CANON KK
Inventor： MAMIYA TOSHIHARU
Abstract: PROBLEM TO BE SOLVED: To improve the heat radiation property of a polygon mirror part which is arranged inside an optical box and can not be directly cooled because it is hermetically sealed. SOLUTION: A cover attached to a polygon motor or a motor housing is connected with the optical box or a cap through a thermal conducting member. Material which can be elastically deformed or freely bent is used for the thermal conducting member.
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公开(公告)号：JPH10232591A
公开(公告)日：1998-09-02
申请号：JP4857697
申请日：1997-02-18
Applicant: CANON KK
Inventor： MAMIYA TOSHIHARU
Abstract: PROBLEM TO BE SOLVED: To heat and dry an image carrier without needing a heating means used in a later process and, therefore, to maintain satisfactory image quality by providing a means for selectively leading the heat of spaces near a fixing device into the image carrier or halting it. SOLUTION: A toner image is formed and held on a transfer material advancing from the right to left and in the position of the image carrier 1, the toner image is fixed to the transfer material under heat and pressure in a fixing part including a fixing roller 17, and the transfer material is ejected out of the machine. In the fixing part, the fixing roller 17 is heated to a specific temperature by the action of a heater 18, and accompanying it the heating of air near the roller occurs. Therefore, by actuating a fan 20, the heated air is passed, via a connection pipe 19-a, through a hollow pipe 13 in the image carrier 1 and a connection pipe 19-b, and brought back to the space near the fixing roller. By the passage of the heated air through the hollow pipe 13 the pipe is heated, and, further, via fins 21 provided on it the temperature of the image carrier is increased.
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公开(公告)号：JPH07264354A
公开(公告)日：1995-10-13
申请号：JP5572894
申请日：1994-03-25
Applicant: CANON KK
Inventor： MAMIYA TOSHIHARU
IPC: H04N1/028
Abstract: PURPOSE:To prevent a lens unit supporting member from being deformed even if the supporting member and a sensor unit are fixed by adhesive by adhering the supporting member and a CCD holding sensor part by the surfaces with each other which are parallel to the optical axis of incident light on a sensor. CONSTITUTION:A lens base 11 and a lens unit 12 are fixed to an adjusting jig. A holding member 25 is made to about on the projection part 24-c of a fixing member 24 after the member 25 is fixed to the adjusting jig, and an optical adjustment is performed in the state. Because the space between the fixing member 24 and the holding member 25 is kept to a prescribed value as it is by the projection part 24-c of the fixing member 24 at a center part although force contracting solder is generated at this time and the force exerting between soldering parts 24-b and 25-b is in the roughly vertical direction to an optical axis at the center part, deformation is not generated in the both of the fixing member 24 and the holding member 25. At the both ends parts, deformation is apt to be generated, but because deformation is not generated at the center part and at an intermediate part, generated deformation amount is small. Thus, a color separation can be exactly performed for an original image.
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