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    • 1. 发明专利
    • シート搬送装置及び画像形成装置
    • 实施装置和图像形成装置
    • JP2014213958A
    • 2014-11-17
    • JP2013089650
    • 2013-04-22
    • 株式会社リコーRicoh Co Ltd
    • YASUDA TETSUTAROISHIKAWA YOSHIKUNINONAKA MANABU
    • B65H3/08B65H1/14B65H3/18
    • B65H1/14B65H3/08B65H3/18
    • 【課題】シートの剛性によらず、良好な分離性を得ることができ、かつ、生産性を高めることができるシート搬送装置および画像形成装置を提供する。【解決手段】吸着位置から搬送位置に移行させるとき、吸着ベルト2のシート束の最上位シート1aが吸着する吸着領域内の上流側張架ローラ6よりもシート搬送方向下流側の位置で吸着ベルト2をシート束1に押し付け、上記移行に伴ってこの押し付け位置よりもシート搬送方向下流側の吸着ベルト2が、シート束1に対して傾斜する傾斜角度が、所定の角度となると、吸着ベルト2とともにシート束1から離間する押し付け部材80を備え、押し付け部材80がシート束1から離間するときの傾斜角度を変更可能に構成した。【選択図】図26
    • 要解决的问题:提供一种能够在不依赖于片材刚度的情况下实现优异的片材分离性的片材传送装置和成像装置,并且还能够提高生产率。解决方案:提供一种按压部件80, 单元从吸入位置传送到携带位置,将抽吸带2压靠在纸张捆1的下游侧的纸张输送方向上的位于吸入带的吸入区域内的上游侧悬挂辊6的位置处, 其中吸收片材束的最上面的片材1a。 当在纸张传送方向上的按压位置的下游侧的吸引带2相对于纸张捆1倾斜时,按压部件80与吸引带2一起与片材捆1分离,成为倾斜角度 预定角度与转移步进。 当按压构件80与片材束1分离时的倾斜角度被配置为可变的。
    • 3. 发明专利
    • Sheet conveying device and image forming apparatus
    • 输送装置和图像形成装置
    • JP2013249157A
    • 2013-12-12
    • JP2012124398
    • 2012-05-31
    • Ricoh Co Ltd株式会社リコー
    • YASUDA TETSUTARONONAKA MANABUISHIKAWA YOSHIKUNI
    • B65H3/18B65H1/14B65H5/00B65H5/02
    • PROBLEM TO BE SOLVED: To provide a sheet conveying device capable of reliably separating sheets even when a sheet with insufficient stiffness is used, and an image forming apparatus.SOLUTION: A sheet conveying device 200 including an adsorption separation unit 110 for tension-laying an adsorption belt 2 by a first tension-laying roller 6 and a second tension-laying roller 5 on the upstream side of the first tension-laying roller, a tension-laying roller driving means, a charging means 3 for charging the surface of the adsorption belt, and a contact and separation means 120 for contacting or separating the adsorption belt and a sheet bundle by moving at least one of the adsorption belt and the sheet bundle between an adsorption position and a spaced position, is provided with a rolling up means for rolling up a leading end of the uppermost sheet adsorbed on the adsorption belt in the adsorption position from the sheet bundle according to the curvature of the first tension-laying roller. After contacting the adsorption belt and the sheet bundle by the contact and separation means and causing the adsorption belt to adsorb the uppermost sheet, the leading end of the uppermost sheet is rolled up by the rolling up means, and the adsorption belt and the sheet bundle are spaced by the contact and separation means.
    • 要解决的问题:提供即使当使用刚度不足的片材也能够可靠地分离片材的片材输送装置和图像形成装置。解决方案:一种片材输送装置200,包括用于张紧敷设的吸附分离单元110 吸附带2由第一张力敷设辊6和第二张力敷设辊5在第一张力铺设辊的上游侧,张力铺设辊驱动装置,用于对吸附表面进行充填的装料装置3 带和用于通过使吸附带和片材束中的至少一个移动到吸附位置和间隔位置之间的吸附带和片束的接触分离装置120设置有卷起装置, 根据第一张力敷设辊的曲率,卷取从片材束吸附在吸附带上的最上层片材的前端。 在通过接触分离装置使吸附带和片材束接触并使吸附带吸附最上面的片材之后,最上面的片材的前端被卷起装置卷起,并且吸附带和片材束 由接触和分离装置隔开。
    • 4. 发明专利
    • Sheet conveyance device and image forming apparatus
    • 表格输送装置和图像形成装置
    • JP2013234049A
    • 2013-11-21
    • JP2012108211
    • 2012-05-10
    • Ricoh Co Ltd株式会社リコー
    • YASUDA TETSUTARONONAKA MANABUISHIKAWA YOSHIKUNI
    • B65H3/48B65H1/04B65H3/18
    • PROBLEM TO BE SOLVED: To provide a sheet conveyance device capable of stably separating a top sheet from a sheet bundle and conveying it regardless of a sheet size or the like.SOLUTION: In an electrostatic adsorption type sheet conveyance device where a plurality of air blowing parts 14A, 14B, 14B, by two or more movable push-up air blowing parts 14B, a second sheet is disposed to blow air for pushing up a sheet bundle 1 to a position where a distance between the top sheet 1A and the second sheet is the longest. A direction in which air is blown from the air blowing parts 14B can stably separate the second sheet by angling a corner of the sheet so that as much as air is made to surely flow in a gap between two sheets.
    • 要解决的问题:提供一种片材输送装置,其能够将片材从片材片材稳定地分离并输送,而不管片材尺寸等等。解决方案:在静电吸附型片材输送装置中,其中多次吹气 部分14A,14B,14B,由两个或更多个可移动的上推空气吹送部分14B,第二片材被设置成吹送用于将片材摞1推起的空气到顶片1A和第二片材之间的距离 是最长的 从空气吹出部14B吹出空气的方向可以通过使片材的角部成角度来稳定地分离第二片材,使得尽可能多地使空气在两片之间的间隙中流动。
    • 5. 发明专利
    • シート搬送装置及び画像形成装置
    • 输送装置和图像形成装置
    • JP2015009973A
    • 2015-01-19
    • JP2013138165
    • 2013-07-01
    • 株式会社リコーRicoh Co Ltd
    • YASUDA TETSUTARONONAKA MANABUISHIKAWA YOSHIKUNI
    • B65H3/18B65H29/56
    • 【課題】ジャム処理作業を簡素化することができ、かつ、吸着ベルトの傷つきを抑制することができるシート搬送装置および画像形成装置を提供する。【解決手段】複数の張架ローラにより張架され、積載されたシート束1の上面に対向配置された回転可能な無端状の吸着ベルト2と、シート束1の最上位シート1aを吸着ベルト2に吸着させる帯電部材3とを備え、吸着ベルト2を無端移動させて、吸着ベルト2に吸着した最上位シートを搬送し、下流側張架ローラ5の曲率により最上位シート1aを吸着ベルト2から分離するシート搬送装置200において、最上位シート1aの吸着ベルト2への巻き付きを検知する巻き付き検知センサ73と、巻き付き検知センサ73が巻き付きを検知したとき、吸着ベルト2に巻き付いた最上位シート1aを吸着ベルト2から剥がす剥がし手段とを備えた。【選択図】図12
    • 要解决的问题:提供一种片材输送装置,该片材输送装置能够进行应对困难的作业,并且能够抑制吸附带的划痕,并提供图像形成装置。解决方案:片材输送装置200包括可旋转的 环状吸附带2,其通过多个拉伸辊拉伸并且布置成面向装载的薄片束1的上表面;以及充电部件3,用于使吸附带2吸附片材束1的最上面的片材1a。 吸附带2不停地移动以输送吸附带2吸附的最上面的片材,最上面的片材1a通过下游拉伸辊5的曲率与吸附带2分离。片材输送装置200还包括绕组 检测传感器73,用于检测最上层片材1a在吸附带2周围的缠绕;以及分离装置,用于分离缠绕在吸附带2上的最上层片材1a 当绕组检测传感器73检测到绕组时,来自吸附带2的吸附带2。
    • 6. 发明专利
    • Paper feeder and image formation apparatus
    • 纸张进纸器和图像形成装置
    • JP2014177347A
    • 2014-09-25
    • JP2013054128
    • 2013-03-15
    • Ricoh Co Ltd株式会社リコー
    • TOYOOKA TSUGUMASAISHIKAWA YOSHIKUNINONAKA MANABUYASUDA TETSUTARO
    • B65H3/04B65H3/18B65H3/48B65H5/00
    • PROBLEM TO BE SOLVED: To stably attract and convey forms without multiple-sheet feeding even when the forms are small in weight.SOLUTION: A paper feeder comprises a form setting table 40 which can move up and down while having a form bundle S loaded; a conveyor belt 31 which is arranged above the form bundle S at an attraction position at a predetermined distance from a top surface of the form bundle S, and extended between and wound around an upstream roller 32 and a downstream roller 33; an attraction conveyance device 30 which includes an electrostatic charging device 43 for electrostatically charging the conveyor belt, and attracts and conveys the top form of the form bundle; and a regulation member 64 which is arranged downstream from the form setting table 40 in a form conveyance direction, and restricts the position of a form downstream-side end of the form bundle S. In the paper feeder, the regulation member 64 can move in the form conveyance direction so as to change the position of the form bundle S in the form conveyance direction relatively to the attraction conveyance device 30.
    • 要解决的问题:即使在形状小的情况下,即使在形状小的情况下也能够稳定地吸引和输送形式而不进行多页进给。解决方案:供纸装置包括可装载成形束S的上下移动的形状设定台40; 输送带31,其在离成型束S的上表面预定距离的吸引位置处配置在成形束S的上方,并且在上游辊32和下游辊33之间延伸并缠绕在上游辊32上。 吸引输送装置30,其包括用于对输送带进行静电充电的静电充电装置43,并且吸引并输送形式束的顶部形式; 以及调节构件64,其在形式输送方向上布置在成形设置台40的下游,并且限制成形束S的下游侧端部的位置。在供纸器中,调节构件64可以移动 形式传送方向,以相对于吸引输送装置30改变形式传送方向上的形式束S的位置。
    • 7. 发明专利
    • Sheet conveying device and image forming apparatus
    • 输送装置和图像形成装置
    • JP2014156320A
    • 2014-08-28
    • JP2013028267
    • 2013-02-15
    • Ricoh Co Ltd株式会社リコー
    • YASUDA TETSUTARONONAKA MANABUISHIKAWA YOSHIKUNI
    • B65H3/04B65H3/18
    • PROBLEM TO BE SOLVED: To provide a sheet conveying device and an image forming apparatus which can suppress a sheet adsorbed with an adsorption belt from peeling when using the sheet having high rigidity.SOLUTION: The sheet conveying device 200 includes: an adsorption/separation unit 110 having an adsorption belt 2, and a first stretching roller 5 and a second stretching roller 6 for stretching the adsorption belt; charging means 3 for charging a surface of the adsorption belt; and oscillating means 120 for oscillating the adsorption/separation unit with a support member 14 arranged in an upstream side of the second stretching roller in the sheet conveying direction as a supporting point so as to move the adsorption belt back and forth between an adsorption position and a conveyance position. There is provided a pressing member 35 which is arranged inside the adsorption belt, and presses a portion of the adsorption belt in the vicinity of the second stretching roller to a sheet bundle when oscillating the adsorption belt from the adsorption position toward the conveyance position.
    • 要解决的问题:提供一种片材输送装置和图像形成装置,当使用具有高刚性的片材时,可以抑制吸附带吸附的片材的剥离。解决方案:片材输送装置200包括:吸附/分离单元 具有吸附带2的第一拉伸辊5和用于拉伸吸附带的第二拉伸辊6; 充电装置3,用于对吸附带的表面进行充电; 以及振动装置120,用于使吸附/分离单元以在片材输送方向上布置在第二拉伸辊的上游侧的支撑构件14作为支撑点摆动,以使吸附带在吸附位置和 输送位置。 设置有一个按压构件35,该按压构件35布置在吸附带的内部,并将吸附带从吸附位置向输送位置摆动时将第二拉伸辊附近的吸附带的一部分按压到片材束。
    • 8. 发明专利
    • Sheet conveyance device and image forming apparatus
    • 表格输送装置和图像形成装置
    • JP2013103813A
    • 2013-05-30
    • JP2011249521
    • 2011-11-15
    • Ricoh Co Ltd株式会社リコー
    • YASUDA TETSUTAROISHIKAWA YOSHIKUNINONAKA MANABU
    • B65H3/18
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus that can suppress occurrence of poor adsorption, damage of an adsorption separation unit, and deformation of an uppermost sheet.SOLUTION: A sheet conveyance device includes: the adsorption separation unit that has an adsorption belt arranged opposite to a top of a sheet bundle and rotatably-stretched by a plurality of stretch rollers, and is swingably-supported to a support member at the upstream in a sheet conveyance direction farther than the adsorption belt; a charging means for charging a surface of the adsorption belt; and a swing means for swinging the adsorption separation unit with the support member as a fulcrum so as to reciprocate the adsorption belt between an adsorption position where the uppermost sheet of the sheet bundle is brought into contact and adsorbed to the adsorption belt and a conveyance position at which the uppermost sheet adsorbing to the adsorption belt is conveyed and which is spaced from the sheet bundle farther than the adsorption position. The device includes a swing stop means for stopping the adsorption separation unit swung by the swing means if a load equal to or more than a predetermined load is applied to the adsorption separation unit, when the adsorption belt comes into contact with the uppermost sheet.
    • 要解决的问题:提供一种可以抑制吸附不良的发生,吸附分离单元的损坏和最上层的变形的图像形成装置。 解决方案:片材输送装置包括:吸附分离单元,其具有与片材摞的顶部相对设置并且被多个拉伸辊可旋转地拉伸的吸附带,并且可旋转地支撑在支撑构件上 在片材输送方向的上游比吸附带更远; 用于对吸附带的表面充电的装料装置; 以及摆动装置,用于使吸附分离单元以支撑构件为支点摆动,以使吸附带在最上层的片材片接触并吸附到吸附带的吸附位置和输送位置之间往复运动 其上吸附吸附带的最上面的片材被传送,并且与吸收位置比片材束间隔更远。 该装置包括一个摆动停止装置,用于当吸附带与最上面的片接触时,如果将等于或大于预定载荷的载荷施加到吸附分离单元上,则停止由摆动装置摆动的吸附分离单元。 版权所有(C)2013,JPO&INPIT