JP6675264B2

JP6675264B2 - Sheet transport device

Info

Publication number: JP6675264B2
Application number: JP2016098774A
Authority: JP
Inventors: 雅彦森; 工平大河内
Original assignee: Duplo Seiko Corp
Current assignee: Duplo Seiko Corp
Priority date: 2016-05-17
Filing date: 2016-05-17
Publication date: 2020-04-01
Anticipated expiration: 2036-05-17
Also published as: JP2017206342A

Description

本発明は、前段装置から第１方向へ搬送されて来たシートを、受けて、第１方向に対して交差した第２方向へ搬送する、シート搬送装置に関する。 The present invention relates to a sheet conveying device that receives a sheet conveyed in a first direction from a preceding device and conveys the sheet in a second direction crossing the first direction.

例えば、特許文献１、２には、従来のシート搬送装置が開示されている。特許文献１の装置は、第１方向へ搬送する搬送ベルトと、第２方向に搬送する搬送ローラとを、上下に相対的に移動させる構成を、備えている。特許文献２の装置は、シートの第１方向先端部に上方から負荷を与える球体を備えている。また、いずれの装置も、シートを、第１方向先端縁にてガイド部材に沿わせながら、第２方向へ搬送するようになっている。 For example, Patent Documents 1 and 2 disclose a conventional sheet conveying device. The device disclosed in Patent Document 1 has a configuration in which a transport belt that transports in a first direction and a transport roller that transports in a second direction are relatively moved up and down. The device disclosed in Patent Document 2 includes a sphere that applies a load from above to a front end portion of the sheet in the first direction. In addition, in any of the apparatuses, the sheet is conveyed in the second direction along the guide member at the leading edge in the first direction.

特開平６−８０２９５号公報JP-A-6-80295 特開２０１０−３０７６６号公報JP 2010-30766 A

特許文献１の装置では、第２方向へのシートの搬送を開始する際にスリップが生じる、という問題があった。特許文献２の装置では、球体が負荷を与えるので、スリップは生じないが、シートが薄い場合には、シートが球体を潜り抜けることができず、その結果、シートをガイド部材に沿わせながら搬送することができない、という恐れがあった。 The apparatus disclosed in Patent Document 1 has a problem that a slip occurs when the sheet is conveyed in the second direction. In the device of Patent Document 2, no slip occurs because the sphere applies a load, but when the sheet is thin, the sheet cannot pass through the sphere, and as a result, the sheet is conveyed while being guided along the guide member. There was a fear that they could not.

本発明は、シートが薄い場合でも、安定して、シートを第１方向から第２方向へ搬送することができる、シート搬送装置を、提供することを目的としている。 An object of the present invention is to provide a sheet conveying apparatus that can stably convey a sheet from a first direction to a second direction even when the sheet is thin.

本発明のシート搬送装置は、前段装置から第１方向へ搬送されて来たシートを、受けて、第１方向に対して交差した第２方向へ搬送する、シート搬送装置において、
前記第２方向に沿って設けられており、前記第２方向へ搬送される前記シートの前記第１方向先端縁をガイドする、ガイド部材と、
前記シートを前記ガイド部材に沿わせながら前記第２方向へ搬送する、複数の搬送ローラと、
隣接する少なくとも１組の前記搬送ローラの間に設けられており、前段装置から受けた前記シートが前記第１方向へ移動するのを助ける、搬送ベルトと、
前記ガイド部材の近傍に且つ少なくとも１つの前記搬送ローラの上方に設けられており、前記シートの上に乗って前記シートに負荷を与える、回転自在な球体と、
前記搬送ベルトと前記搬送ローラとを相対的に昇降させる、搬送昇降機構と、
前記第１方向へ移動する前記シートの前記第１方向先端縁が前記ガイド部材に近接又は当接するのを助ける、接近補助機構と、
前記シートの搬送作業を制御する制御部と、
を備えており、
前記制御部は、
前段装置から前記シートを受ける際に、前記搬送昇降機構を作動させることによって前記搬送ベルトを前記搬送ローラより上方に位置させた後に、前記搬送ベルトを作動させる、ベルト作動部と、
所定の場合に、前記搬送ベルトの作動時において前記接近補助機構を作動させる、接近作動部と、
を有している、
ことを特徴としている。 The sheet conveying device of the present invention is a sheet conveying device that receives a sheet conveyed from a preceding device in a first direction and conveys the sheet in a second direction crossing the first direction.
A guide member that is provided along the second direction and guides a leading edge of the sheet conveyed in the second direction in the first direction;
A plurality of transport rollers for transporting the sheet in the second direction along the guide member,
A transport belt provided between at least one pair of the transport rollers adjacent to each other, which assists the sheet received from a preceding device to move in the first direction;
A rotatable sphere that is provided near the guide member and above at least one of the transport rollers and rides on the sheet to apply a load to the sheet;
A transport elevating mechanism that relatively raises and lowers the transport belt and the transport roller,
An approach assist mechanism that helps the first direction leading edge of the sheet moving in the first direction to approach or contact the guide member;
A control unit for controlling the sheet conveying operation,
With
The control unit includes:
When receiving the sheet from the preceding device, after locating the transport belt above the transport roller by operating the transport lift mechanism, to operate the transport belt, a belt operating unit,
In a predetermined case, when the transport belt is operated, the approach assist mechanism is operated, an approach operating unit,
have,
It is characterized by:

本発明によれば、前段装置から第１方向へ搬送されて来たシートを、搬送ベルトによって第１方向へ積極的に搬送するだけでなく、接近補助機構を作動させることによって、シートの第１方向先端縁がガイド部材に近接するのを助けるので、シートの厚さが薄い場合であっても、シートをガイド部材に沿わせながら第２方向へ安定して搬送することができる。 According to the present invention, the sheet conveyed in the first direction from the preceding apparatus is not only positively conveyed in the first direction by the conveyance belt, but also the first sheet of the sheet is operated by operating the approach assist mechanism. Since the leading edge in the direction helps to approach the guide member, the sheet can be stably conveyed in the second direction along the guide member even when the sheet is thin.

本発明の一実施形態のシート搬送装置を備えた、シート加工システムを示す斜視図である。1 is a perspective view illustrating a sheet processing system including a sheet conveying device according to an embodiment of the present invention. シート搬送装置の平面図である。FIG. 3 is a plan view of the sheet conveying device. 図２のIII矢視斜視図である。FIG. 3 is a perspective view as viewed in the direction of the arrow III in FIG. 2. 図２のIV矢視斜視図である。FIG. 4 is a perspective view as viewed from an arrow IV in FIG. 2. 図２のＶ矢視図である。FIG. 5 is a view on arrow V in FIG. 2. 図５のガイド部材の拡大図である。It is an enlarged view of the guide member of FIG. 多数の搬送ベルト及びその支持機構のみを示す斜視図である。It is a perspective view which shows only a large number of conveyance belts and its support mechanism. 図７のVIII矢視図である。FIG. 8 is a view on arrow VIII of FIG. 7. 図８のIX矢視図である。FIG. 9 is a view taken in the direction of the arrow IX in FIG. 8. 図８のＸ矢視図である。FIG. 9 is a view on arrow X in FIG. 8. 図８のＸＩ矢視図である。FIG. 9 is a view taken in the direction of arrow XI in FIG. 8. 図８のＸII−ＸII断面図である。It is XII-XII sectional drawing of FIG. 搬送ベルトが上昇した状態のカム及びコロを示す略図である。4 is a schematic diagram illustrating a cam and a roller in a state where a conveyor belt is raised. 搬送ベルトが下降した状態のカム及びコロを示す略図である。4 is a schematic diagram showing a cam and rollers in a state where a conveyor belt is lowered. 搬送ベルトが下降した状態の、図３に相当する図である。FIG. 4 is a view corresponding to FIG. 3 in a state in which the transport belt has been lowered. 搬送ベルトが下降した状態の、図４に相当する図である。FIG. 5 is a diagram corresponding to FIG. 4 in a state in which the transport belt has been lowered. 搬送ベルトが下降した状態の、図５に相当する図である。FIG. 6 is a diagram corresponding to FIG. 5 in a state in which the transport belt has been lowered. 搬送ベルトが下降した状態の、図９に相当する図である。FIG. 10 is a diagram corresponding to FIG. 9, in a state in which the transport belt has been lowered. 搬送ベルトが下降した状態の、図１０に相当する図である。FIG. 11 is a diagram corresponding to FIG. 10 in a state where the transport belt is lowered. 搬送ベルトが下降した状態の、図１１に相当する図である。FIG. 12 is a diagram corresponding to FIG. 11 in a state where the transport belt has been lowered. 搬送ベルトが下降した状態の、図１２に相当する図である。FIG. 13 is a diagram corresponding to FIG. 12 in a state where the transport belt has been lowered. 搬送ベルトが上昇した状態のシート搬送装置の縦断面図である。FIG. 4 is a vertical cross-sectional view of the sheet conveying device in a state where a conveying belt is raised. 搬送ベルトが下降した状態のシート搬送装置の縦断面図である。FIG. 4 is a vertical sectional view of the sheet conveying device in a state where a conveying belt is lowered. 搬送昇降機構のカムの位相のずれを示す図である。It is a figure which shows the phase shift of the cam of a conveyance raising / lowering mechanism. 球体昇降機構の上方斜視図である。FIG. 4 is an upper perspective view of a sphere lifting mechanism. 図２５の反対側から見た、球体昇降機構の下方斜視図である。FIG. 26 is a lower perspective view of the sphere lifting mechanism as viewed from the opposite side of FIG. 25. 図２５の縦断面図である。It is a longitudinal cross-sectional view of FIG. 腰付与機構の作動の様子を示す図である。It is a figure showing a mode of operation of a waist giving mechanism. 制御部のブロック図である。It is a block diagram of a control part.

図１は、本発明の一実施形態のシート搬送装置を備えた、シート加工システムを示す斜視図である。本実施形態のシート搬送装置１００は、給紙装置１０１及び印刷装置１０２の後段に、且つ、加工装置１０３の前段に、配置されている。すなわち、本実施形態では、シート搬送装置１００の前段には印刷装置１０２が配置されているが、本発明では、これに限らず、例えば、印刷装置１０２に代えて、加工装置を配置しても良い。シート搬送装置１００は、印刷装置１０２で印刷されて第１方向（矢印Ａ方向）に搬送されて来たシートＰを、受けて、第１方向に対して交差した第２方向（矢印Ｂ方向）に搬送して、加工装置１０３へ送り込むようになっている。本実施形態では、第２方向Ｂは、第１方向Ａに対して直交した方向であるが、本発明では、これに限らない。 FIG. 1 is a perspective view showing a sheet processing system provided with a sheet conveying device according to an embodiment of the present invention. The sheet conveying device 100 according to the present embodiment is disposed downstream of the sheet feeding device 101 and the printing device 102 and upstream of the processing device 103. That is, in the present embodiment, the printing apparatus 102 is disposed in front of the sheet conveying apparatus 100. However, the present invention is not limited to this. For example, a processing apparatus may be disposed instead of the printing apparatus 102. good. The sheet conveying device 100 receives the sheet P printed by the printing device 102 and conveyed in the first direction (direction of arrow A), and receives the sheet P in a second direction (direction of arrow B) intersecting the first direction. And sent to the processing device 103. In the present embodiment, the second direction B is a direction orthogonal to the first direction A, but the present invention is not limited to this.

［全体構成］
図２は、シート搬送装置１００の平面図である。図３は、図２のIII矢視斜視図である。図４は、図２のIV矢視斜視図である。図５は、図２のＶ矢視図である。シート搬送装置１００は、ガイド部材１（図５）と、多数の搬送ローラ２と、多数の搬送ベルト３と、多数の球体４と、搬送昇降機構５（図５）と、接近補助機構と、制御部７（図２９）と、を備えている。 [overall structure]
FIG. 2 is a plan view of the sheet conveying device 100. FIG. 3 is a perspective view of FIG. FIG. 4 is a perspective view taken along the arrow IV in FIG. FIG. 5 is a view on arrow V in FIG. The sheet conveying device 100 includes a guide member 1 (FIG. 5), a number of conveying rollers 2, a number of conveying belts 3, a number of spheres 4, a conveying elevating mechanism 5 (FIG. 5), an approach assisting mechanism, A control unit 7 (FIG. 29).

更に、本実施形態のシート搬送装置１００は、腰付与機構８、第２吸引機構、及び入力機構を、備えている。 Further, the sheet conveying device 100 of the present embodiment includes a waist imparting mechanism 8, a second suction mechanism, and an input mechanism.

［ガイド部材］
図６は、図５のガイド部材１の拡大図である。ガイド部材１は、第１方向Ａの最下流側において、鉛直に立設し且つ第２方向Ｂに沿って延びた、当接壁１１を、備えている。なお、ガイド部材１は、直近に、球体４の支持板４１とシート案内板４２とを、有している。支持板４１は、当接壁１１から、水平に且つ第１方向Ａの上流に向かって延在している。案内板４２は、支持板４１の先端から、斜め上方に且つ第１方向Ａの上流に向かって延在している。 [Guide member]
FIG. 6 is an enlarged view of the guide member 1 of FIG. The guide member 1 is provided with a contact wall 11 that stands vertically and extends along the second direction B on the most downstream side in the first direction A. Note that the guide member 1 has a support plate 41 of the sphere 4 and a sheet guide plate 42 in the immediate vicinity. The support plate 41 extends horizontally from the contact wall 11 and upstream in the first direction A. The guide plate 42 extends obliquely upward from the tip of the support plate 41 and upstream in the first direction A.

［球体］
球体４は、支持板４１の貫通孔４１１に、上方から嵌入されている。貫通孔４１１の径Ｄ１は、球体４の直径Ｄ２より小さいので、球体４は、上下動自在に且つ回転自在に、支持板４１によって支持されている。球体４は、シートＰが第２方向Ｂに搬送されるのを妨げない重さに、設定されている。 [sphere]
The sphere 4 is fitted into the through hole 411 of the support plate 41 from above. Since the diameter D1 of the through hole 411 is smaller than the diameter D2 of the sphere 4, the sphere 4 is supported by the support plate 41 so as to be vertically movable and rotatable. The sphere 4 is set to a weight that does not prevent the sheet P from being conveyed in the second direction B.

［搬送ローラ］
多数の搬送ローラ２は、シートＰを第２方向Ｂに搬送する第２方向搬送手段を、構成している。すなわち、多数の搬送ローラ２によって、第２方向搬送面２０（図５）が構成されている。搬送ローラ２自体の搬送方向は、第２方向Ｂに対してガイド部材１側に傾いて、設定されている。これにより、搬送面２０に載ったシートＰは、ガイド部材１側に押しやられながら、第２方向Ｂへ搬送される。全ての搬送ローラ２は、駆動モータ２５、回転ベルト２６、及びローラ回転ベルト２７によって、同時に、回転されるようになっている。ローラ回転ベルト２７は、全ての搬送ローラ２に、常時、下方から摺接している。 [Transport roller]
The multiple transport rollers 2 constitute a second direction transport unit that transports the sheet P in the second direction B. That is, the second-direction transport surface 20 (FIG. 5) is configured by the multiple transport rollers 2. The transport direction of the transport roller 2 itself is set to be inclined toward the guide member 1 with respect to the second direction B. Thus, the sheet P placed on the transport surface 20 is transported in the second direction B while being pushed to the guide member 1 side. All the transport rollers 2 are simultaneously rotated by a drive motor 25, a rotating belt 26, and a roller rotating belt 27. The roller rotating belt 27 is always in sliding contact with all the transport rollers 2 from below.

［搬送ベルト］
図２に示されるように、搬送ベルト３は、多数設けられており、各搬送ベルト３は、隣接する搬送ローラ２の間に、第１方向Ａに沿って、配置されている。多数の搬送ベルト３は、シートＰを第１方向Ａに搬送する第１方向搬送手段を、構成している。すなわち、多数の搬送ベルト３によって、第１方向搬送面３０（図５）が構成されている。図７は、多数の搬送ベルト３及びその支持機構のみを示す斜視図である。図８は、図７のVIII矢視図である。図９は、図８のIX矢視図である。搬送ベルト３は、駆動プーリ３１１と従動プーリ３１２とに掛け渡されて、且つ、第１方向Ａに沿って、設けられている。全体の半数の駆動プーリ３１１は、第１駆動軸３２１に固定されており、残りの駆動プーリ３１１は、第２駆動軸３２２に固定されている。第１駆動軸３２１及び第２駆動軸３２２は、第１方向Ａの下流側にて、第２方向Ｂに沿って延びている。第１駆動軸３２１は、駆動モータ３２３及び回転ベルト３２４によって、回転されるようになっており、第２駆動軸３２２は、駆動モータ３２５及び回転ベルト３２６によって、回転されるようになっており、これによって、搬送ベルト３が駆動されるようになっている。 [Transport belt]
As shown in FIG. 2, a large number of transport belts 3 are provided, and each transport belt 3 is arranged along the first direction A between adjacent transport rollers 2. The multiple transport belts 3 constitute a first direction transport unit that transports the sheet P in the first direction A. That is, the first conveying surface 30 (FIG. 5) is constituted by the plurality of conveying belts 3. FIG. 7 is a perspective view showing only a number of transport belts 3 and a support mechanism thereof. FIG. 8 is a view on arrow VIII of FIG. FIG. 9 is a view on arrow IX in FIG. The transport belt 3 is provided between the driving pulley 311 and the driven pulley 312 and along the first direction A. Half of the drive pulleys 311 are fixed to the first drive shaft 321, and the remaining drive pulleys 311 are fixed to the second drive shaft 322. The first drive shaft 321 and the second drive shaft 322 extend along the second direction B on the downstream side in the first direction A. The first drive shaft 321 is rotated by a drive motor 323 and a rotation belt 324, and the second drive shaft 322 is rotated by a drive motor 325 and a rotation belt 326. Thereby, the transport belt 3 is driven.

［搬送昇降機構］
図１０は、図８のＸ矢視図である。図１１は、図８のＸＩ矢視図である。図１２は、図８のＸII−ＸII断面図である。全ての搬送ベルト３は、１個の上開きの筐体（支持基台）３３内に、支持されている。筐体３３の底面３３１には、２本の支持軸３４１、３４２が固定されている。支持軸３４１、３４２は、それぞれ、底面３３１の半分の中央に、固定されている。支持軸３４１には、２個のコロ３５１、３５２が離間して、それぞれ回転自在に、設けられている。支持軸３４２にも、支持軸３４１と同じように、２個のコロ３５３、３５４が設けられている。支持軸３４１のコロ３５１、３５２には、図１０及び図１２に示されるように、下方から、カム３６１、３６２がそれぞれ当接している。支持軸３４２のコロ３５３、３５４には、図１１及び図１２に示されるように、下方から、カム３６３、３６４がそれぞれ当接している。カム３６１、３６２は、駆動モータ３７１、回転ベルト３７２、プーリ３７３、及びカム軸３７４によって、回転されるようになっており、カム３６３、３６４は、駆動モータ３７１、回転ベルト３７５、プーリ３７６、及びカム軸３７７によって、回転されるようになっている。これにより、図１３に示すように、カム３６１〜３６４の膨出部が上方に向き始めると、筐体３３は上昇し、カム３６１〜３６４の上死点領域Ｒがコロ３５１〜３５４に当接している間は、筐体３３は上昇位置にあり、図１４に示すように、カム３６１〜３６４の膨出部が下方に向き始めると、筐体３３は下降するようになっている。すなわち、多数の搬送ベルト３は、一体的に、上下に昇降自在に、設けられている。図３〜図５及び図９〜図１２は、多数の搬送ベルト３が上昇した状態を示しており、それらの各図に対応して、図１５〜図１７及び図１８〜図２１は、多数の搬送ベルト３が下降した状態を示している。 [Transport lifting mechanism]
FIG. 10 is a view taken in the direction of the arrow X in FIG. FIG. 11 is a view taken in the direction of the arrow XI in FIG. FIG. 12 is a sectional view taken along line XII-XII of FIG. All the transport belts 3 are supported in a single upwardly opened housing (support base) 33. Two support shafts 341 and 342 are fixed to the bottom surface 331 of the housing 33. The support shafts 341 and 342 are fixed to the center of the half of the bottom surface 331, respectively. Two rollers 351 and 352 are provided on the support shaft 341 so as to be rotatable and separated from each other. Similarly to the support shaft 341, two rollers 353 and 354 are provided on the support shaft 342. As shown in FIGS. 10 and 12, the cams 361 and 362 are in contact with the rollers 351 and 352 of the support shaft 341 from below, respectively. As shown in FIGS. 11 and 12, the cams 363 and 364 come into contact with the rollers 353 and 354 of the support shaft 342 from below, respectively. The cams 361 and 362 are rotated by a driving motor 371, a rotating belt 372, a pulley 373, and a cam shaft 374. The cams 363 and 364 are driven by a driving motor 371, a rotating belt 375, a pulley 376, The camshaft 377 rotates. As a result, as shown in FIG. 13, when the bulging portions of the cams 361 to 364 start to turn upward, the housing 33 rises, and the top dead center region R of the cams 361 to 364 comes into contact with the rollers 351 to 354. During this operation, the housing 33 is at the raised position, and as shown in FIG. 14, when the bulging portions of the cams 361 to 364 start to face downward, the housing 33 is lowered. That is, the plurality of transport belts 3 are integrally provided so as to be vertically movable. FIGS. 3 to 5 and FIGS. 9 to 12 show a state in which a large number of transport belts 3 have risen. FIGS. 15 to 17 and FIGS. 3 shows a state in which the conveyor belt 3 has been lowered.

すなわち、本実施形態のシート搬送装置１００においては、図２２に示されるように、多数の搬送ベルト３が上昇することによって、搬送ベルト３によって構成された搬送面３０が、搬送ローラ２によって構成された搬送面２０よりも高くなり、また、図２３に示されるように、多数の搬送ベルト３が下降することによって、搬送面３０が搬送面２０よりも低くなるようになっている。 That is, in the sheet conveying apparatus 100 of the present embodiment, as shown in FIG. 22, the conveying surface 30 formed by the conveying belts 3 is formed by the conveying rollers 2 by raising the plurality of conveying belts 3. The transport surface 30 is lower than the transport surface 20 by lowering a large number of transport belts 3 as shown in FIG.

なお、カム３６１、３６２と、カム３６３、３６４とは、上死点領域Ｒの位相を少しずらして、設定されている。すなわち、図２４に示されるように、カム３６１、３６２の上死点領域Ｒの始点Ｑがコロ３５１、３５２に当接する時と、カム３６３、３６４の上死点領域Ｒの始点Ｑがコロ３５３、３５４に当接する時とは、同時にならないように、設定されている。これにより、カム３６１、３６２に最も負荷が掛かる時と、カム３６３、３６４に最も負荷が掛かる時とを、ずらすことができる。したがって、駆動モータ３７１の負担を軽減でき、よって、搬送昇降機構を１個の駆動モータで構成できる。なお、本実施形態では、上死点領域Ｒは、円周角７０度の領域であり、位相のずれは、１０度であるが、これらに限らない。 Note that the cams 361 and 362 and the cams 363 and 364 are set by slightly shifting the phase of the top dead center region R. That is, as shown in FIG. 24, when the starting point Q of the top dead center region R of the cams 361 and 362 contacts the rollers 351 and 352, the starting point Q of the top dead center region R of the cams 363 and 364 is set to the roller 353. , 354 are set so as not to be at the same time. This makes it possible to stagger the time when the cams 361 and 362 are most loaded and the time when the cams 363 and 364 are most loaded. Therefore, the load on the drive motor 371 can be reduced, and the transport elevating mechanism can be constituted by one drive motor. In the present embodiment, the top dead center region R is a region having a circumferential angle of 70 degrees and the phase shift is 10 degrees, but is not limited thereto.

［接近補助機構］
本実施形態のシート搬送装置１００は、接近補助機構として、接離機構、ベルト速度調整機構、及びシート付勢機構を、含んでいる。 [Access assist mechanism]
The sheet conveying device 100 of the present embodiment includes a contact / separation mechanism, a belt speed adjusting mechanism, and a sheet urging mechanism as the approach assisting mechanism.

（接離機構）
接離機構は、搬送ローラ２と球体４とを相対的に接離させる機構である。本実施形態では、接離機構として、球体４を搬送ローラ２に対して昇降させる球体昇降機構６１を、備えている。図２５は、球体昇降機構６１の上方斜視図である。図２６は、図２５の反対側から見た、球体昇降機構６１の下方斜視図である。図２７は、図２５の縦断面図である。球体４の支持板４１は、第２方向Ｂの上流端及び下流端にて、天板６１１に連結されている。天板６１１は、球体４が支持板４１から飛び出すのを防止するように、球体４の上方に位置している。天板６１１は、２個の支持基台６１２に支持されている。２個の支持基台６１２には、それぞれ、コロ６１３、６１４が固定されている。コロ６１３には、下方からカム６１５が当接しており、コロ６１４には、下方からカム６１６が当接している。カム６１５、６１６は、回転ベルト６１７、６１８を介して、駆動モータ６１９によって回転されるようになっている。これにより、駆動モータ６１９が作動すると、カム６１５、６１６が回転し、その結果、天板６１１及び支持板４１と共に多数の球体４が昇降する。図２７は、球体４が上昇した状態を示している。 (Contact mechanism)
The contact / separation mechanism is a mechanism for relatively moving the transport roller 2 and the sphere 4 toward and away from each other. In the present embodiment, a sphere lifting mechanism 61 that raises and lowers the sphere 4 with respect to the transport roller 2 is provided as a contact / separation mechanism. FIG. 25 is a top perspective view of the sphere lifting mechanism 61. FIG. 26 is a lower perspective view of the sphere lifting mechanism 61 as viewed from the opposite side of FIG. FIG. 27 is a longitudinal sectional view of FIG. The support plate 41 of the sphere 4 is connected to the top plate 611 at the upstream end and the downstream end in the second direction B. The top plate 611 is located above the sphere 4 so as to prevent the sphere 4 from jumping out of the support plate 41. The top plate 611 is supported by two support bases 612. Rollers 613 and 614 are fixed to the two support bases 612, respectively. A cam 615 is in contact with the roller 613 from below, and a cam 616 is in contact with the roller 614 from below. The cams 615 and 616 are rotated by a drive motor 619 via rotating belts 617 and 618. As a result, when the drive motor 619 operates, the cams 615 and 616 rotate, and as a result, a large number of spheres 4 move up and down together with the top plate 611 and the support plate 41. FIG. 27 shows a state where the sphere 4 has risen.

なお、カム６１５とカム６１６とは、前記搬送昇降機構のカムと同様に、上死点領域の位相を少しずらして、設定されている。これにより、カム６１５に最も負荷が掛かる時と、カム６１６に最も負荷が掛かる時とを、ずらすことができる。したがって、駆動モータ６１９の負担を軽減でき、よって、球体昇降機構６１を１個の駆動モータで構成できる。 Note that the cam 615 and the cam 616 are set with a slight shift in the phase of the top dead center region, similarly to the cam of the transport elevating mechanism. This makes it possible to stagger the time when the cam 615 is most loaded and the time when the cam 616 is most loaded. Therefore, the load on the drive motor 619 can be reduced, and the sphere lifting mechanism 61 can be constituted by one drive motor.

（ベルト速度調整機構）
ベルト速度調整機構は、搬送ベルト３の搬送速度を調整する機構である。具体的には、ベルト速度調整機構は、駆動モータ３２３、３２５の回転速度を調整することによって、搬送ベルト３の搬送速度を調整するようになっている。 (Belt speed adjustment mechanism)
The belt speed adjusting mechanism is a mechanism for adjusting the transport speed of the transport belt 3. Specifically, the belt speed adjusting mechanism adjusts the transport speed of the transport belt 3 by adjusting the rotation speed of the drive motors 323 and 325.

（シート付勢機構）
シート付勢機構は、搬送ベルト３に対して所定の付勢力でシートＰを付勢する機構である。具体的には、シート付勢機構は、搬送ベルト３よりも下方に設けられており、シートＰを吸引することによってシートＰを搬送ベルト３に対して付勢する、吸引ファン６２（第１吸引機構）を、備えている。吸引ファン６２は、図２に示されるように、第１方向Ａの略中央に且つ第２方向Ｂにおいて略等間隔に並んで、４個配置されている。 (Seat biasing mechanism)
The sheet urging mechanism is a mechanism for urging the sheet P with a predetermined urging force on the conveyor belt 3. Specifically, the sheet urging mechanism is provided below the conveyance belt 3 and urges the sheet P against the conveyance belt 3 by sucking the sheet P. Mechanism). As shown in FIG. 2, four suction fans 62 are arranged substantially at the center in the first direction A and at substantially equal intervals in the second direction B.

［腰付与機構］
腰付与機構８は、前段装置（印刷装置１０２）から第１方向Ａへ搬送されて来たシートＰに、腰を付与する、機構である。具体的には、腰付与機構８は、シートＰが印刷装置１０２からシート搬送装置１００へ移行する箇所に設けられており、すなわち、搬送ベルト３及び搬送ローラ２よりも上方に、且つ、搬送ベルト３の上流側に、設けられており、回転自在な、上コロ８１及び下コロ８２からなっている。図４に示すように、上コロ８１は４個設けられており、下コロ８２は２個設けられている。図２８に示されるように、下コロ８２は、隣接する上コロ８１の間に位置しており、下コロ８２の上端は、上コロ８１の下端より少し上方に位置している。これにより、上コロ８１と下コロ８２との間を通るシートＰは、幅方向Ｗにおいて複数の湾曲部を有することとなり、その結果、腰を有することとなる。 [Waist giving mechanism]
The waist giving mechanism 8 is a mechanism that gives a waist to the sheet P conveyed in the first direction A from the preceding apparatus (printing device 102). Specifically, the waist imparting mechanism 8 is provided at a position where the sheet P transitions from the printing apparatus 102 to the sheet conveying apparatus 100, that is, above the conveying belt 3 and the conveying roller 2, and An upper roller 81 and a lower roller 82 are provided on the upstream side of 3 and are rotatable. As shown in FIG. 4, four upper rollers 81 are provided, and two lower rollers 82 are provided. As shown in FIG. 28, the lower roller 82 is located between the adjacent upper rollers 81, and the upper end of the lower roller 82 is located slightly above the lower end of the upper roller 81. Thus, the sheet P passing between the upper roller 81 and the lower roller 82 has a plurality of curved portions in the width direction W, and as a result, has a waist.

［第２吸引機構］
第２吸引機構は、搬送ローラ２よりも下方に設けられており、シートＰを吸引することによってシートＰを搬送ローラ２に対して付勢する、機構である。具体的には、吸引ファン６２が第２吸引機構を兼ねている。 [Second suction mechanism]
The second suction mechanism is provided below the conveyance roller 2, and urges the sheet P against the conveyance roller 2 by sucking the sheet P. Specifically, the suction fan 62 also serves as the second suction mechanism.

［入力機構］
入力機構は、シートＰの厚さが、第１所定値Ｔ１以上である第１の場合と第１所定値Ｔ１未満である第２の場合との、いずれであるか、を入力する、機構である。具体的には、入力機構は、操作パネルのボタンである。 [Input mechanism]
The input mechanism is a mechanism for inputting which of a first case where the thickness of the sheet P is equal to or more than the first predetermined value T1 and a second case where the thickness of the sheet P is less than the first predetermined value T1. is there. Specifically, the input mechanism is a button on the operation panel.

［制御部］
図２９は、制御部７のブロック図である。制御部７は、ベルト作動部７１、接近作動部７２、ローラ作動部７３、及び第２シート付勢部７４を、有している。 [Control unit]
FIG. 29 is a block diagram of the control unit 7. The control unit 7 includes a belt operating unit 71, an approach operating unit 72, a roller operating unit 73, and a second sheet urging unit 74.

（ベルト作動部）
ベルト作動部７１は、搬送昇降機構及び搬送ベルト３を、制御する。すなわち、ベルト作動部７１は、印刷装置１０２からシートＰを受ける際に、搬送昇降機構を作動させることによって搬送ベルト３を搬送ローラ２より上方に位置させ、その後、搬送ベルト３を作動させる。 (Belt operating part)
The belt operating unit 71 controls the transport elevating mechanism and the transport belt 3. That is, when receiving the sheet P from the printing apparatus 102, the belt operating unit 71 operates the transport elevating mechanism to position the transport belt 3 above the transport roller 2, and then activates the transport belt 3.

（接近作動部）
接近作動部７２は、接近補助機構を制御する。すなわち、接近作動部７２は、入力機構からの入力信号を受けて、所定の場合に、搬送ベルト３の作動時において接近補助機構を作動させる。接近作動部７２は、離間作動部７２１、速度調整部７２２、及び第１シート付勢部７２３を、有している。 (Approaching operation part)
The approach operation section 72 controls the approach assist mechanism. That is, the approach operating section 72 receives an input signal from the input mechanism and operates the approach assist mechanism when the transport belt 3 is operating in a predetermined case. The approach operation unit 72 includes a separation operation unit 721, a speed adjustment unit 722, and a first sheet urging unit 723.

（１）離間作動部７２１
離間作動部７２１は、接離機構を制御する。すなわち、離間作動部７２１は、シートＰの厚さが第１所定値Ｔ１未満の場合に、接離機構を作動させ、それによって、搬送ローラ３と球体４とを相対的に離間させる。具体的には、離間作動部７２１は、シートＰの厚さが第１所定値Ｔ１未満の場合に、球体昇降機構６１を作動させ、それによって、球体４を搬送ローラ２に対して上昇させ、両者の間に隙間Ｄ（図示せず）を形成する。 (1) Separation operation part 721
The separation operation unit 721 controls the contact and separation mechanism. That is, when the thickness of the sheet P is less than the first predetermined value T1, the separation operation unit 721 operates the contact and separation mechanism, thereby relatively separating the conveyance roller 3 and the sphere 4 from each other. Specifically, when the thickness of the sheet P is less than the first predetermined value T1, the separation operation unit 721 operates the sphere lifting mechanism 61, thereby raising the sphere 4 with respect to the transport roller 2, A gap D (not shown) is formed between the two.

（２）速度調整部７２２
速度調整部７２２は、ベルト速度調整機構を制御する。すなわち、速度調整部７２２は、シートＰの厚さが第１所定値Ｔ１未満の場合に、ベルト速度調整機構を作動させることによって、搬送ベルト３の搬送速度を印刷装置１０２から搬送されて来たシートＰの第１方向Ａへの搬送速度よりも大きくする。 (2) Speed adjuster 722
The speed adjusting unit 722 controls a belt speed adjusting mechanism. That is, when the thickness of the sheet P is less than the first predetermined value T1, the speed adjusting unit 722 operates the belt speed adjusting mechanism to convey the conveying speed of the conveying belt 3 from the printing apparatus 102. The conveying speed of the sheet P in the first direction A is made higher.

（３）第１シート付勢部７２３
第１シート付勢部７２３は、シート付勢機構（吸引ファン６２）を制御する。すなわち、第１シート付勢部７２３は、シートＰの厚さが第１所定値Ｔ１以上である第１の場合とシートＰの厚さが第１所定値Ｔ１未満である第２の場合とにおいて、吸引ファン６２を作動させることによって、付勢力を、第１の場合＜第２の場合となるように設定する。そして、第１シート付勢部７２３は、付勢力を設定するために、吸引ファン６２の吸引量を設定するようになっている。 (3) First sheet urging unit 723
The first sheet urging unit 723 controls the sheet urging mechanism (suction fan 62). That is, the first sheet urging unit 723 performs the first case where the thickness of the sheet P is equal to or more than the first predetermined value T1 and the second case where the thickness of the sheet P is less than the first predetermined value T1. By operating the suction fan 62, the urging force is set so that the first case is smaller than the second case. The first sheet urging unit 723 sets the suction amount of the suction fan 62 in order to set the urging force.

（ローラ作動部）
ローラ作動部７３は、搬送ローラ２をオンオフ制御する。すなわち、ローラ作動部７３は、シートＰの厚さが第１所定値Ｔ１以上である場合には、搬送ベルト３の作動時において搬送ローラ２の作動をオンし、シートＰの厚さが第１所定値Ｔ１未満である場合には、搬送ベルト３の作動時において搬送ローラ２の作動をオフする。 (Roller operating part)
The roller operating unit 73 controls the transport roller 2 to be turned on and off. That is, when the thickness of the sheet P is equal to or greater than the first predetermined value T1, the roller operating unit 73 turns on the operation of the transport roller 2 when the transport belt 3 is operating, and the thickness of the sheet P is reduced to the first value. If it is less than the predetermined value T1, the operation of the transport roller 2 is turned off when the transport belt 3 is operating.

（第２シート付勢部）
第２シート付勢部７４は、第２吸引機構を制御する。すなわち、搬送ベルト３を下降させた後の、搬送ローラ２の作動時において、且つ、シートＰの厚さが第１所定値Ｔ１以上である第１の場合とシートＰの厚さが第１所定値Ｔ２未満である第２の場合とにおいて、第１の場合には吸引ファン６２をオフし、第２の場合には吸引ファン６２をオンする。 (Second sheet urging unit)
The second sheet urging unit 74 controls the second suction mechanism. That is, when the transport roller 2 is operated after the transport belt 3 is lowered, and in the first case where the thickness of the sheet P is equal to or more than the first predetermined value T1, the first case where the thickness of the sheet P is the first predetermined value In the second case where the value is less than the value T2, the suction fan 62 is turned off in the first case, and the suction fan 62 is turned on in the second case.

［作動・効果］
前記構成のシート搬送装置１００は、次のように作動し、効果を発揮する。 [Operation / Effect]
The sheet conveying apparatus 100 having the above-described configuration operates as described below and exerts an effect.

まず、操作者によって、シートＰの厚さが第１所定値Ｔ１以上であるか否かが、入力機構を介して入力され、その後、スタートボタンが押される。なお、Ｔ１は、本実施形態では、３００ｇｓｍである。 First, the operator inputs via the input mechanism whether or not the thickness of the sheet P is equal to or greater than the first predetermined value T1, and then presses the start button. Note that T1 is 300 gsm in the present embodiment.

まず、印刷装置１０２から、シートＰが第１方向Ａへ搬送されて来る。その際、シートＰは、上コロ８１と下コロ８２との間を通って来るので、腰を有した状態で、シート搬送装置１００に受けられる。したがって、シート搬送装置１００は、印刷装置１０２からのシートＰを安定して受けることができる。 First, the sheet P is conveyed from the printing apparatus 102 in the first direction A. At this time, since the sheet P passes between the upper roller 81 and the lower roller 82, the sheet P is received by the sheet conveying device 100 while having a waist. Therefore, the sheet conveying device 100 can stably receive the sheet P from the printing device 102.

その際、シートＰを受ける時のシート搬送装置１００においては、ベルト作動部７１によって、搬送昇降機構が作動し、それによって、搬送ベルト３が、搬送ローラ２より上方に位置した状態で、作動する。したがって、シート搬送装置１００に受けられたシートＰは、そのままでも第１方向Ａへ進もうとするが、更に、多数の搬送ベルト３に載って第１方向Ａへ搬送される。すなわち、シートＰの第１方向Ａへの移動は、搬送ベルト３によって、促進される。したがって、シート搬送装置１００によれば、印刷装置１０２から第１方向Ａへ搬送されて来たシートＰを、より確実に、第１方向Ａへ搬送でき、シートＰの先端を、より確実に、ガイド部材１へ接近させることができる。 At that time, in the sheet transporting apparatus 100 that receives the sheet P, the transport elevating mechanism operates by the belt operating unit 71, whereby the transport belt 3 operates with the transport belt 3 positioned above the transport roller 2. . Therefore, the sheet P received by the sheet conveying device 100 tends to advance in the first direction A as it is, but is further conveyed in the first direction A on many conveying belts 3. That is, the movement of the sheet P in the first direction A is promoted by the transport belt 3. Therefore, according to the sheet conveying apparatus 100, the sheet P conveyed from the printing apparatus 102 in the first direction A can be conveyed more reliably in the first direction A, and the leading end of the sheet P can be more reliably The guide member 1 can be approached.

（Ｔ１未満の場合）
そして、搬送ベルト３の作動時においては、「シートＰの厚さがＴ１未満である」故に、接近補助機構が次のように作動する。 (If less than T1)
When the transport belt 3 is operated, since the thickness of the sheet P is less than T1, the approach assist mechanism operates as follows.

(1-1)離間作動部７２１によって、球体昇降機構６１が作動し、球体４が搬送ローラ２に対して上昇する。これにより、球体４と搬送ローラ２との間に隙間Ｄができる。したがって、第１方向Ａへ搬送されて来たシートＰは、厚さがＴ１未満であっても、隙間Ｄへ確実に入って行く。 (1-1) The sphere lifting mechanism 61 is actuated by the separation operation unit 721, and the sphere 4 is raised with respect to the transport roller 2. Thereby, a gap D is formed between the sphere 4 and the transport roller 2. Therefore, the sheet P conveyed in the first direction A surely enters the gap D even if the thickness is less than T1.

(1-2)速度調整部７２２によって、ベルト速度調整機構が制御され、それによって、搬送ベルト３の搬送速度が印刷装置１０２から搬送されて来たシートＰの第１方向Ａへの搬送速度よりも大きくなる。したがって、印刷装置１０２から搬送されて来たシートＰは、搬送ベルト３によって、より強力に、第１方向Ａへ搬送されることとなる。 (1-2) The belt speed adjusting mechanism is controlled by the speed adjusting unit 722, so that the conveying speed of the conveying belt 3 is smaller than the conveying speed of the sheet P conveyed from the printing apparatus 102 in the first direction A. Also increases. Therefore, the sheet P conveyed from the printing apparatus 102 is conveyed more strongly in the first direction A by the conveyor belt 3.

(1-3)第１シート付勢部７２３によって、シート付勢機構（吸引ファン６２）が制御され、それによって、吸引ファン６２による付勢力が、「シートＰの厚さがＴ１以上である」場合よりも、強くなる。したがって、搬送面３０に載ったシートＰは、厚さがＴ１未満であっても、搬送ベルト３によって、安定して第１方向Ａへ搬送されることとなる。 (1-3) The sheet urging mechanism (suction fan 62) is controlled by the first sheet urging unit 723, and the urging force of the suction fan 62 is “the thickness of the sheet P is equal to or more than T1”. It will be stronger than you would. Therefore, the sheet P placed on the transport surface 30 is stably transported in the first direction A by the transport belt 3 even if the thickness is less than T1.

（２）次に、搬送ベルト３は、所定時間だけ作動すると、停止する。また、搬送ベルト３の停止と同時に、離間作動部７２１によって、球体昇降機構６１が作動し、球体４が、搬送ローラ２に対して下降して、シートＰの先端の上に載り、隙間Ｄは無くなる。 (2) Next, when the conveyor belt 3 operates for a predetermined time, it stops. Simultaneously with the stop of the transport belt 3, the sphere lifting mechanism 61 is operated by the separation operating unit 721, and the sphere 4 descends with respect to the transport roller 2 and is placed on the leading end of the sheet P, and the gap D is reduced. Disappears.

（３）そして、搬送ローラ２が作動する。なお、搬送ローラ２は、ローラ作動部７３によって搬送ベルト３の作動時においては停止していたので、搬送ベルト３に載っていたシートＰが搬送ローラ２に載った後に、回転を開始することとなる。すなわち、搬送ローラ２は、シートＰが搬送ローラ２上で安定した後に、回転する。したがって、シートＰは、スリップすることなく、多数の搬送ローラ２によって、第２方向Ｂへ搬送される。そして、この作動においては、次のような作動も生じる。 (3) Then, the transport roller 2 operates. In addition, since the transport roller 2 is stopped when the transport belt 3 is operated by the roller operating unit 73, the rotation of the transport roller 2 is started after the sheet P on the transport belt 3 is loaded on the transport roller 2. Become. That is, the transport roller 2 rotates after the sheet P is stabilized on the transport roller 2. Therefore, the sheet P is transported in the second direction B by the multiple transport rollers 2 without slipping. In this operation, the following operation also occurs.

(4-1)搬送ローラ２自体の搬送方向が第２方向Ｂに対してガイド部材１側に傾いているので、シートＰは、ガイド部材１側に押しやられながら、第２方向Ｂへ搬送される。したがって、搬送ローラ２は、シートＰを積極的にガイド部材１に沿わせることができる。 (4-1) Since the transport direction of the transport roller 2 itself is inclined toward the guide member 1 with respect to the second direction B, the sheet P is transported in the second direction B while being pushed to the guide member 1 side. You. Therefore, the transport roller 2 can positively move the sheet P along the guide member 1.

(4-2)球体４がシートＰの先端の上に載っているので、シートＰは、安定した状態で、第２方向Ｂへ搬送される。 (4-2) Since the sphere 4 is placed on the leading end of the sheet P, the sheet P is transported in the second direction B in a stable state.

(4-3)第２シート付勢部７４によって、吸引ファン６２がオンする。これにより、シートＰは、多数の搬送ローラ２からなる搬送面２０に対して付勢される。したがって、シートＰは、多数の搬送ローラ２によって、安定して、搬送される。 (4-3) The suction fan 62 is turned on by the second sheet urging unit 74. As a result, the sheet P is urged against the transport surface 20 including the multiple transport rollers 2. Therefore, the sheet P is stably conveyed by the many conveying rollers 2.

以上のように、前記構成のシート搬送装置１００によれば、前段装置から第１方向Ａへ搬送されて来たシートＰの厚さがＴ１未満であっても、すなわち、シートＰが薄い場合でも、シートＰを、第１方向Ａに対して直交した第２方向Ｂへ、安定して、搬送することができる。 As described above, according to the sheet conveying apparatus 100 having the above-described configuration, even if the thickness of the sheet P conveyed in the first direction A from the preceding apparatus is less than T1, that is, even if the sheet P is thin, , The sheet P can be stably conveyed in the second direction B orthogonal to the first direction A.

表１は、シートＰの厚さがＴ１以上の場合とＴ１未満の場合とにおける作動の差異を、示している。 Table 1 shows a difference in operation between the case where the thickness of the sheet P is equal to or greater than T1 and the case where the thickness of the sheet P is less than T1.

（Ｔ１以上の場合）
シートＰの厚さがＴ１以上の場合には、表１に示される「Ｔ１未満」の場合に比して、関連する制御部及び機構が、表１に示される「Ｔ１以上」の場合のように、作動する。その他は、「Ｔ１未満」の場合と同様である。 (In case of T1 or more)
When the thickness of the sheet P is equal to or larger than T1, the related control unit and mechanism are set to be equal to or larger than "T1" shown in Table 1, as compared with the case of "less than T1" shown in Table 1. Then, it works. Others are the same as in the case of “less than T1”.

したがって、前記構成のシート搬送装置１００によれば、前段装置から第１方向Ａへ搬送されて来たシートＰの厚さがＴ１以上であってもＴ１未満であっても、すなわち、シートＰが厚い場合でも薄い場合でも、シートＰを、第１方向Ａに対して直交した第２方向Ｂへ、安定して、搬送することができる。 Therefore, according to the sheet conveying apparatus 100 having the above-described configuration, even if the thickness of the sheet P conveyed from the preceding apparatus in the first direction A is equal to or larger than T1 or smaller than T1, the sheet P Regardless of whether the sheet P is thick or thin, the sheet P can be stably conveyed in the second direction B orthogonal to the first direction A.

［変形例］
（１）前記実施形態では、シートＰの厚さを「Ｔ１以上」と「Ｔ１未満」との２つの場合に区分している。しかるに、本発明では、シートＰの厚さは、表２に示されるように、「Ｔ１以上」と「Ｔ１未満Ｔ２以上」と「Ｔ２未満」との３つの場合に区分されてもよい。この場合、本変形例では、Ｔ１は３００ｇｓｍであり、Ｔ２は１００ｇｓｍである。また、関連する制御部及び機構は、表２に示されるように、作動する。 [Modification]
(1) In the above embodiment, the thickness of the sheet P is divided into two cases, “more than T1” and “less than T1”. However, in the present invention, as shown in Table 2, the thickness of the sheet P may be classified into three cases, “T1 or more”, “T1 or less T2 or more”, and “T2 or less”. In this case, in this modification, T1 is 300 gsm and T2 is 100 gsm. Also, the related control units and mechanisms operate as shown in Table 2.

更に、シートＰの厚さは、４つ以上の場合に区分されてもよい。 Further, the thickness of the sheet P may be divided into four or more cases.

Ｔ１、Ｔ２等は、任意の値に設定してもよい。 T1, T2, etc. may be set to any values.

（２）第２方向Ｂは、第１方向Ａに対して直交した方向に限るものではなく、第１方向Ａに対して任意の角度で交差した方向であればよい。 (2) The second direction B is not limited to the direction orthogonal to the first direction A, but may be any direction that intersects the first direction A at an arbitrary angle.

（３）接近補助機構は、接離機構、ベルト速度調整機構、及びシート付勢機構の内の、少なくとも１つを含んでいればよい。その場合、それに対応して、接近作動部７２も、離間作動部７２１、速度調整部７２２、及び第１シート付勢部７２３の内のいずれか１つを有すればよい。 (3) The approach assist mechanism may include at least one of a contact / separation mechanism, a belt speed adjustment mechanism, and a sheet urging mechanism. In that case, the approaching operation unit 72 may have any one of the separation operation unit 721, the speed adjustment unit 722, and the first sheet urging unit 723.

（４）搬送昇降機構としては、搬送ローラ２を搬送ベルト３に対して昇降させる機構を、採用してもよい。 (4) As the transport elevating mechanism, a mechanism that raises and lowers the transport roller 2 with respect to the transport belt 3 may be employed.

（５）球体昇降機構６１に代えて、搬送ローラ２を球体４に対して昇降させるローラ昇降機構を、採用してもよい。ローラ昇降機構は、球体昇降機構６１と同様に、コロ及びカムを含む機構によって実現できる。 (5) Instead of the sphere lifting mechanism 61, a roller lifting mechanism that raises and lowers the transport roller 2 with respect to the sphere 4 may be employed. The roller lifting mechanism can be realized by a mechanism including a roller and a cam, similarly to the sphere lifting mechanism 61.

（６）前記実施形態では、吸引ファン６２を第１吸引機構と第２吸引機構とに兼用している。しかるに、第１吸引機構と第２吸引機構とは、別々の吸引ファンを採用してもよい。 (6) In the above embodiment, the suction fan 62 is also used as the first suction mechanism and the second suction mechanism. However, the first suction mechanism and the second suction mechanism may employ separate suction fans.

（７）吸引ファンに代えて、シートＰに対して上方から空気を吹き付けて付勢力を与える吹付ファンを、採用してもよい。 (7) Instead of the suction fan, a blowing fan that blows air onto the sheet P from above to apply a biasing force may be employed.

（８）腰付与機構としては、下コロのみを採用してもよい。下コロのみの場合でも、シートＰは、重力で湾曲するので、腰を有することとなる。 (8) Only the lower roller may be used as the waist imparting mechanism. Even when only the lower roller is used, the sheet P has a waist because it is curved by gravity.

本発明のシート搬送装置は、シートが薄い場合でも、安定して、シートを第１方向から第２方向へ搬送することができるので、産業上の利用価値が大である。 The sheet conveying apparatus of the present invention can stably convey a sheet from the first direction to the second direction even when the sheet is thin, and thus has a great industrial value.

１００シート搬送装置１ガイド部材２搬送ローラ３搬送ベルト
３３筐体３５１〜３５４コロ３６１〜３６４カム３７１駆動モータ
３７２、３７５回転ベルト４球体６１球体昇降機６２吸引ファン
７制御部７１ベルト作動部７２接近作動部７２１離間作動部
７２２速度調整部７２３第１シート付勢部７３ローラ作動部
７４第２シート付勢部８腰付与機構８１上コロ８２下コロ REFERENCE SIGNS LIST 100 sheet conveyance device 1 guide member 2 conveyance roller 3 conveyance belt 33 housing 351 to 354 roller 361 to 364 cam 371 drive motor 372, 375 rotation belt 4 sphere 61 sphere elevator 62 suction fan 7 control unit 71 belt operation unit 72 approach operation Unit 721 Separation operation unit 722 Speed adjustment unit 723 First sheet urging unit 73 Roller operation unit 74 Second sheet urging unit 8 Waist imparting mechanism 81 Upper roller 82 Lower roller

Claims

In a sheet conveying device, which receives a sheet conveyed in a first direction from a preceding device and conveys the sheet in a second direction crossing the first direction,
A guide member that is provided along the second direction and guides a leading edge of the sheet conveyed in the second direction in the first direction;
A plurality of transport rollers for transporting the sheet in the second direction along the guide member,
A transport belt provided between at least one pair of the transport rollers adjacent to each other, which assists the sheet received from a preceding device to move in the first direction;
A rotatable sphere that is provided near the guide member and above at least one of the transport rollers and rides on the sheet to apply a load to the sheet;
A transport elevating mechanism that relatively raises and lowers the transport belt and the transport roller,
An approach assist mechanism that helps the first direction leading edge of the sheet moving in the first direction to approach or contact the guide member;
A control unit for controlling the sheet conveying operation,
With
The control unit includes:
When receiving the sheet from the preceding device, after locating the transport belt above the transport roller by operating the transport lift mechanism, to operate the transport belt, a belt operating unit,
In a predetermined case, when the transport belt is operated, the approach assist mechanism is operated, an approach operating unit,
Has,
The approach assisting mechanism includes a contact / separation mechanism that relatively moves and separates the transport roller and the sphere,
A separating operation for relatively separating the transport roller and the sphere by operating the contact / separation mechanism when the thickness of the sheet is less than a first predetermined value; Part,
A sheet conveying device , characterized in that:

In a sheet conveying device, which receives a sheet conveyed in a first direction from a preceding device and conveys the sheet in a second direction crossing the first direction,
A guide member that is provided along the second direction and guides a leading edge of the sheet conveyed in the second direction in the first direction;
A plurality of transport rollers for transporting the sheet in the second direction along the guide member,
A transport belt provided between at least one pair of the transport rollers adjacent to each other, which assists the sheet received from a preceding device to move in the first direction;
A rotatable sphere that is provided near the guide member and above at least one of the transport rollers and rides on the sheet to apply a load to the sheet;
A transport elevating mechanism that relatively raises and lowers the transport belt and the transport roller,
An approach assist mechanism that helps the first direction leading edge of the sheet moving in the first direction to approach or contact the guide member;
A control unit for controlling the sheet conveying operation,
With
The control unit includes:
When receiving the sheet from the preceding device, after locating the transport belt above the transport roller by operating the transport lift mechanism, to operate the transport belt, a belt operating unit,
In a predetermined case, when the transport belt is operated, the approach assist mechanism is operated, an approach operating unit,
Has,
The approach assist mechanism includes a belt speed adjustment mechanism that adjusts a conveyance speed of the conveyance belt,
The approach operation unit of the control unit, when the thickness of the sheet is less than a first predetermined value, by operating the belt speed adjustment mechanism, the transport speed of the transport belt is transported from a preceding device. A speed adjusting unit configured to increase the speed of transport of the incoming sheet in the first direction;
A sheet conveying device , characterized in that:

In a sheet conveying device, which receives a sheet conveyed in a first direction from a preceding device and conveys the sheet in a second direction crossing the first direction,
A guide member that is provided along the second direction and guides a leading edge of the sheet conveyed in the second direction in the first direction;
A plurality of transport rollers for transporting the sheet in the second direction along the guide member,
A transport belt provided between at least one pair of the transport rollers adjacent to each other, which assists the sheet received from a preceding device to move in the first direction;
A rotatable sphere that is provided near the guide member and above at least one of the transport rollers and rides on the sheet to apply a load to the sheet;
A transport elevating mechanism that relatively raises and lowers the transport belt and the transport roller,
An approach assist mechanism that helps the first direction leading edge of the sheet moving in the first direction to approach or contact the guide member;
A control unit for controlling the sheet conveying operation,
With
The control unit includes:
When receiving the sheet from the preceding device, after locating the transport belt above the transport roller by operating the transport lift mechanism, to operate the transport belt, a belt operating unit,
In a predetermined case, when the transport belt is operated, the approach assist mechanism is operated, an approach operating unit,
Has,
The approach assist mechanism includes a sheet urging mechanism that urges the sheet with a predetermined urging force on the transport belt,
The approach operation unit of the control unit is configured such that at least in a first case where the thickness of the sheet is equal to or more than a first predetermined value and in a second case where the thickness of the sheet is less than a first predetermined value, A first sheet urging unit configured to set the urging force so as to satisfy the first case <the second case by operating a sheet urging mechanism;
A sheet conveying device , characterized in that:

In a sheet conveying device, which receives a sheet conveyed in a first direction from a preceding device and conveys the sheet in a second direction crossing the first direction,
A guide member that is provided along the second direction and guides a leading edge of the sheet conveyed in the second direction in the first direction;
A plurality of transport rollers for transporting the sheet in the second direction along the guide member,
A transport belt provided between at least one pair of the transport rollers adjacent to each other, which assists the sheet received from a preceding device to move in the first direction;
A rotatable sphere that is provided near the guide member and above at least one of the transport rollers and rides on the sheet to apply a load to the sheet;
A transport elevating mechanism that relatively raises and lowers the transport belt and the transport roller,
An approach assist mechanism that helps the first direction leading edge of the sheet moving in the first direction to approach or contact the guide member;
A control unit for controlling the sheet conveying operation,
With
The control unit includes:
When receiving the sheet from the preceding device, after locating the transport belt above the transport roller by operating the transport lift mechanism, to operate the transport belt, a belt operating unit,
In a predetermined case, when the transport belt is operated, the approach assist mechanism is operated, an approach operating unit,
Has,
The control unit has a roller operating unit that controls on and off of the operation of the transport roller,
When the thickness of the sheet is equal to or greater than a first predetermined value, the roller operating unit turns on the operation of the transport roller when the transport belt is operating, and the thickness of the sheet is less than the first predetermined value. In the case of, the operation of the transport roller is turned off at the time of the operation of the transport belt,
A sheet conveying device , characterized in that:

In a sheet conveying device, which receives a sheet conveyed in a first direction from a preceding device and conveys the sheet in a second direction crossing the first direction,
A guide member that is provided along the second direction and guides a leading edge of the sheet conveyed in the second direction in the first direction;
A plurality of transport rollers for transporting the sheet in the second direction along the guide member,
A transport belt provided between at least one pair of the transport rollers adjacent to each other, which assists the sheet received from a preceding device to move in the first direction;
A rotatable sphere that is provided near the guide member and above at least one of the transport rollers and rides on the sheet to apply a load to the sheet;
A transport elevating mechanism that relatively raises and lowers the transport belt and the transport roller,
An approach assist mechanism that helps the first direction leading edge of the sheet moving in the first direction to approach or contact the guide member;
A control unit for controlling the sheet conveying operation,
With
The control unit includes:
When receiving the sheet from the preceding device, after locating the transport belt above the transport roller by operating the transport lift mechanism, to operate the transport belt, a belt operating unit,
In a predetermined case, when the transport belt is operated, the approach assist mechanism is operated, an approach operating unit,
Has,
A second suction mechanism, which is provided below the conveyance roller and urges the sheet against the conveyance roller by sucking the sheet,
The control unit is configured to control the first case where the thickness of the sheet is equal to or more than a first predetermined value and the second case where the thickness of the sheet is less than a first predetermined value when the transport roller is operated. A second sheet urging unit that turns off the second suction mechanism in the first case and turns on the second suction mechanism in the second case.
A sheet conveying device , characterized in that:

In a sheet conveying device, which receives a sheet conveyed in a first direction from a preceding device and conveys the sheet in a second direction crossing the first direction,
A guide member that is provided along the second direction and guides a leading edge of the sheet conveyed in the second direction in the first direction;
A plurality of transport rollers for transporting the sheet in the second direction along the guide member,
A transport belt provided between at least one pair of the transport rollers adjacent to each other, which assists the sheet received from a preceding device to move in the first direction;
A rotatable sphere that is provided near the guide member and above at least one of the transport rollers and rides on the sheet to apply a load to the sheet;
A transport elevating mechanism that relatively raises and lowers the transport belt and the transport roller,
An approach assist mechanism that helps the first direction leading edge of the sheet moving in the first direction to approach or contact the guide member;
A control unit for controlling the sheet conveying operation,
With
The control unit includes:
When receiving the sheet from the preceding device, after locating the transport belt above the transport roller by operating the transport lift mechanism, to operate the transport belt, a belt operating unit,
In a predetermined case, when the transport belt is operated, the approach assist mechanism is operated, an approach operating unit,
Has,
The transport elevating mechanism includes a support base for the transport belt or the transport roller, a plurality of cams that contact a plurality of rollers fixed to the support base from below, a drive motor, and rotation of the drive motor. A rotating belt for transmitting to the cam,
The cam has a top dead center region that supports the support base at an ascending position,
At least one of the cams and the other cams are set such that a starting point of the top dead center region does not simultaneously contact the rollers.
A sheet conveying device , characterized in that:

The contact / separation mechanism includes a sphere lifting mechanism that raises and lowers the sphere with respect to the transport roller,
The sheet conveying device according to claim 1 .

The contact / separation mechanism includes a roller lifting mechanism that raises and lowers the transport roller with respect to the sphere,
The sheet conveying device according to claim 1 .

The sheet urging mechanism is provided below the transport belt, and includes a first suction mechanism that urges the sheet against the transport belt by sucking the sheet.
The first sheet urging unit is configured to set a suction amount of the first suction mechanism.
The sheet conveying device according to claim 3 .

The waist is provided above the transport belt and the transport roller and upstream of the transport belt, and imparts a waist to the sheet that has been transported in the first direction from the preceding apparatus. Further comprising a mechanism,
Sheet conveying apparatus according to any one of claims 1 to 9.

The waist imparting mechanism is provided so as to press the sheet from above and below, and includes a rotatable upper roller and a lower roller,
The sheet conveying device according to claim 10 .

The waist imparting mechanism includes a rotatable lower roller, which is arranged to push the sheet from below,
The sheet conveying device according to claim 10 .

An input mechanism for inputting which of a first case where the thickness of the sheet is at least equal to or greater than a first predetermined value and a second case where the thickness is less than the first predetermined value; ,
The sheet conveying device according to claim 1.