JPH0318448Y2 - - Google Patents
Info
- Publication number
- JPH0318448Y2 JPH0318448Y2 JP1984043639U JP4363984U JPH0318448Y2 JP H0318448 Y2 JPH0318448 Y2 JP H0318448Y2 JP 1984043639 U JP1984043639 U JP 1984043639U JP 4363984 U JP4363984 U JP 4363984U JP H0318448 Y2 JPH0318448 Y2 JP H0318448Y2
- Authority
- JP
- Japan
- Prior art keywords
- copy paper
- star
- shaped member
- paper
- pressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003825 pressing Methods 0.000 claims description 35
- 238000005192 partition Methods 0.000 description 19
- 108091008695 photoreceptors Proteins 0.000 description 8
- 210000000078 claw Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 239000011295 pitch Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、未定着画像が形成された複写紙を所
定間隔を隔てて並置された複数条の搬送ベルトに
よつて定着装置に導くようにした複写機における
複写紙の搬送装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention has a method in which copy paper on which an unfixed image is formed is guided to a fixing device by a plurality of conveyor belts arranged side by side at a predetermined interval. The present invention relates to a copy paper conveying device in a copying machine.
上記搬送装置の代表的な従来の構成例を第1図
に示す。図において、1はローラ2,3間に掛け
渡された搬送ベルトで、その下方にはバキユーム
搬送用のフアン4が設けられている。
A typical conventional configuration example of the above-mentioned conveyance device is shown in FIG. In the figure, reference numeral 1 denotes a conveyor belt stretched between rollers 2 and 3, and a fan 4 for conveying the vacuum chamber is provided below the conveyor belt.
5は搬送ベルト1の搬送方向上流側に設けられ
た感光体、6は転写部、7は分離部である。 5 is a photoreceptor provided on the upstream side of the conveyance direction of the conveyor belt 1, 6 is a transfer section, and 7 is a separation section.
8は感光体5に対して搬送方向の上流側に設け
られたレジストローラ、9は搬送ベルト1の搬送
方向下流側に設けられた定着ローラで、熱ローラ
9aと圧ローラ9bから成る。10は排紙ローラ
である。 8 is a registration roller provided on the upstream side of the photoreceptor 5 in the conveyance direction, and 9 is a fixing roller provided on the downstream side of the conveyance belt 1 in the conveyance direction, and is composed of a heat roller 9a and a pressure roller 9b. 10 is a paper ejection roller.
而して、給紙部(図外)から送られてくる複写
紙は、前記レジストローラ8のところで一旦停止
し、前記感光体5の表面に形成されたトナー像と
同期をとつてレジストローラ8が駆動することに
より搬送され、転写部6に送られて前記トナー像
の転写が行われる。 The copy paper fed from the paper feed section (not shown) temporarily stops at the registration roller 8, and is moved to the registration roller 8 in synchronization with the toner image formed on the surface of the photoreceptor 5. The toner image is transported by being driven and sent to the transfer section 6, where the toner image is transferred.
そして、未定着画像であるトナー像が形成され
た複写紙は、分離部7において感光体5と分離さ
れ、フアン4によるエアサクシヨンにより搬送ベ
ルト1に吸着された状態で定着ローラ9へと送ら
れる。 The copy paper on which the toner image, which is an unfixed image, has been formed is separated from the photoreceptor 5 in the separating section 7, and is sent to the fixing roller 9 while being attracted to the conveyor belt 1 by air suction by the fan 4.
しかしながら、複写紙の搬送方向長さが、前記
レジストローラ8のニツプ点と定着ローラ9のニ
ツプ点との間の寸法lよりも短い、例えば葉書な
どの所謂小サイズの複写紙を給紙対象とした場合
に、当該複写紙の搬送が確実に行われなくなるこ
とがあつた。
However, when the length of the copy paper in the conveying direction is shorter than the dimension l between the nip point of the registration roller 8 and the nip point of the fixing roller 9, so-called small-size copy paper such as a postcard is to be fed. In this case, the copy paper may not be transported reliably.
即ち、同図に実線P1で示すように、上記小サ
イズの複写紙の搬送方向中間部(あるいは、感光
体5の回転軸線方向の中間部)が搬送ベルト1上
で上方に膨らむ(あるいは凹む)ように反り返つ
た場合、当該複写紙は搬送ベルト1の上面に対し
て線接触の状態となることから搬送が困難とな
り、特に複写紙の腰が強いものの場合はエアサク
シヨンによつても反り返りが矯正されないため搬
送されなくなることがあつた。 That is, as shown by the solid line P1 in the same figure, the intermediate portion of the small-sized copy paper in the conveying direction (or the intermediate portion in the rotational axis direction of the photoreceptor 5) swells upward (or dents) on the conveying belt 1. ), the copy paper will come into line contact with the top surface of the conveyor belt 1, making it difficult to convey.If the copy paper is particularly stiff, air suction will also prevent the copy paper from warping. There were cases where the items were not transported because they were not corrected.
また、前記定着ローラ9への複写紙の導入性を
向上させるために、前記搬送ベルト1と定着ロー
ラ9との間に角度を付けてガイド11が設けられ
ているような場合は、複写紙の反り返りが顕著で
なくても、同図に仮想線P2で示すように、複写
紙の先端側がガイド11に到達した状態では当該
複写紙の後端側が搬送ベルト1に接触するだけで
あつて、この場合も同様に複写紙の搬送が困難に
なり、ジヤムの原因となつていた。 Further, in order to improve the introduction of the copy paper to the fixing roller 9, if a guide 11 is provided at an angle between the conveyor belt 1 and the fixing roller 9, Even if the warping is not noticeable, as shown by the imaginary line P2 in the figure, when the leading edge of the copy paper reaches the guide 11, only the trailing edge of the copy paper contacts the conveyor belt 1. In this case as well, it becomes difficult to convey the copy paper, causing a jam.
これに対して、前記定着ローラ9を転写部6に
接近させて配置し、前記レジストローラ8と定着
ローラ9との間の寸法lを短くすることが考えら
れるが、定着ローラ9に熱ローラ9aを設けたも
のにあつてはその発熱量が大きくて、当該定着ロ
ーラ9を熱に弱い感光体5に接近させることは好
ましくなく、前記寸法lを無闇に短くすることが
できないという構成上の制約がある。 On the other hand, it is conceivable to arrange the fixing roller 9 close to the transfer section 6 and shorten the dimension l between the registration roller 8 and the fixing roller 9. , the amount of heat generated is large, and it is not preferable to bring the fixing roller 9 close to the photoreceptor 5, which is sensitive to heat, and there is a structural constraint that the dimension l cannot be shortened arbitrarily. There is.
本考案は、上記の実情に鑑みて成されたもので
あつて、構成上の制約を受けながらも、かつ、所
謂腰の強い小サイズの複写紙であつても、これを
確実に搬送することのできる搬送装置を提供する
ことを目的としている。 The present invention has been developed in view of the above-mentioned circumstances, and is intended to reliably transport even small-sized copy paper, which is so-called stiff, even though it is subject to structural constraints. The purpose is to provide a conveying device that can
上記の目的を達成するために本考案は、未定着
画像が形成された複写紙を所定間隔を隔てて並置
された複数条の搬送ベルトによつて定着装置に導
くようにした冒頭に記載の搬送装置において、前
記複写紙の上面に点接触して従動回転する複写紙
押圧用の星形部材を、前記搬送ベルトの条間に対
応させて且つ上下に位置変更自在に設けて、非給
紙下では当該星形部材の最下端を搬送ベルトの条
間に入り込ませると共に、給紙下では複写紙先端
部によつて星形部材を持ち上げさせて当該星形部
材を複写紙上面に点接触させるように構成した点
に特徴がある。
In order to achieve the above object, the present invention provides the conveyance system described at the beginning, in which a copy sheet on which an unfixed image is formed is guided to a fixing device by a plurality of conveyance belts arranged in parallel at predetermined intervals. In the apparatus, a star-shaped member for pressing the copy paper, which is in point contact with the upper surface of the copy paper and driven to rotate, is provided so as to correspond to the grooves of the conveyor belt and can be moved up and down. Then, the lowermost end of the star-shaped member is inserted between the strips of the conveyor belt, and while the paper is being fed, the leading edge of the copy paper lifts the star-shaped member to bring the star-shaped member into point contact with the top surface of the copy paper. It is characterized by its structure.
上記の特徴構成によれば、非給紙下では星形部
材が搬送ベルトの条間に入り込んでいるので、当
該搬送ベルトに負荷がかゝることはない。
According to the above characteristic structure, since the star-shaped member is inserted between the stripes of the conveyor belt when paper is not being fed, no load is applied to the conveyor belt.
そして、複数条の搬送ベルトによる給紙下にお
いては、複写紙の先端が星形部材に到達した際に
当該複写紙がその先端部で星形部材を持ち上げ、
爾後は、複写紙が星形部材の下方を通過するま
で、前記星形部材が点接触の状態で複写紙上面を
押圧しつつ複写紙の搬送に伴つて従動回転する。 When paper is fed by a plurality of conveyor belts, when the leading edge of the copying paper reaches the star-shaped member, the copying paper lifts the star-shaped member with its leading edge.
Thereafter, the star-shaped member rotates as the copy paper is conveyed while pressing the top surface of the copy paper in point contact until the copy paper passes below the star-shaped member.
以下、本考案の実施例を第2図乃至第7図に基
づいて説明する。
Embodiments of the present invention will be described below with reference to FIGS. 2 to 7.
第2図は本考案を適用した所謂クラムシエルタ
イプの静電写真複写機20の概略構成を示し、後
述する上部ユニツトUと下部ユニツトDとに二分
され、かつ、上部ユニツトUが搬送方向上流側の
横軸(図外)まわりで回動自在に下部ユニツトD
に連結され、搬送方向下流側の固定機構(図外)
を解除操作することにより、同図に仮想線で示す
ように、前記上部ユニツトUを上方に回動できる
ようになつている。 FIG. 2 shows a schematic configuration of a so-called clamshell type electrophotographic copying machine 20 to which the present invention is applied, and is divided into an upper unit U and a lower unit D, which will be described later, and the upper unit U is located on the upstream side in the conveyance direction. The lower unit D can be rotated freely around the horizontal axis (not shown).
A fixing mechanism (not shown) is connected to the downstream side in the conveyance direction.
By releasing the button, the upper unit U can be rotated upward as shown by the imaginary line in the figure.
前記上部ユニツトUの上面には、紙面で左右方
向X−Y(複写紙の搬送方向と同じ方向である)
に移動する原稿載置部21が設けられており、こ
の上部ユニツトUの内部には、露光装置22、レ
ンズ等の光学系装置23、感光体24、帯電装置
25、現像装置26、クリーニング装置27、排
気用のフアン28等が設けられている。29は上
仕切板である。 The upper surface of the upper unit U is provided in the left-right direction X-Y (the same direction as the conveyance direction of the copy paper)
The upper unit U includes an exposure device 22, an optical system device 23 such as a lens, a photoreceptor 24, a charging device 25, a developing device 26, and a cleaning device 27. , an exhaust fan 28, etc. are provided. 29 is an upper partition plate.
前記下部ユニツトD内には、カセツトケース3
1の収容部32、手差し部33、給紙ローラ3
4、レジストローラ対35、手差し用ローラ対3
6、転写装置37、分離装置38、搬送ベルト3
9と排気を兼ねたフアン40等とより成る搬送装
置41、定着装置42、排紙ローラ対43、排紙
トレイ44等とともに、星形部材45a,45b
を備えた押圧部材46が前記搬送装置41の上方
に設けられている。 Inside the lower unit D is a cassette case 3.
1 storage section 32, manual feed section 33, paper feed roller 3
4. Registration roller pair 35, manual feed roller pair 3
6, transfer device 37, separation device 38, conveyor belt 3
9 and a fan 40 that also serves as exhaust, a conveying device 41, a fixing device 42, a pair of paper ejection rollers 43, a paper ejection tray 44, etc., as well as star-shaped members 45a, 45b.
A pressing member 46 is provided above the conveying device 41.
前記押圧部材46の具体的取付構造の一例を第
3図乃至第5図に示す。先ず、前記搬送装置41
の搬送ベルト39は、複数条の幅狭の搬送ベルト
39a,39b,39c,39dを、感光体24
の回転軸線方向に所定間隔を隔てて並置して成
り、これらの各搬送ベルト39a,39b,39
c,39d間には、そのベルト上面より下方に数
mmの間隔を隔てて搬送仕切板47a,47b,4
7cを設けてある。 An example of a specific mounting structure for the pressing member 46 is shown in FIGS. 3 to 5. First, the transport device 41
The conveyor belt 39 carries a plurality of narrow conveyor belts 39a, 39b, 39c, and 39d to the photoreceptor 24.
These conveyor belts 39a, 39b, 39 are arranged side by side at a predetermined interval in the rotational axis direction.
Between c and 39d, there are several holes below the top surface of the belt.
Conveyance partition plates 47a, 47b, 4 separated by mm intervals
7c is provided.
前記押圧部材46は、前記上仕切板29の下面
に回動自在に取り付けられ、後述するように、前
記星形部材45a,45bを複写紙の押圧に関与
させる作用位置(第5図に実線で示す)と、当該
星形部材45a,45bを複写紙の押圧に関与さ
せない非作用位置(第5図に仮想線で示す)とに
切り換えられるように構成されている。 The pressing member 46 is rotatably attached to the lower surface of the upper partition plate 29, and as described later, the pressing member 46 is placed in an operating position (indicated by a solid line in FIG. 5) in which the star-shaped members 45a and 45b are involved in pressing the copy paper. ) and a non-operating position (shown by phantom lines in FIG. 5) in which the star-shaped members 45a and 45b do not participate in pressing the copy paper.
即ち、押圧部材46は、前記星形部材45a,
45bを回転自在に取り付けた回転軸48と、当
該回転軸48を保持するブラケツト49とから成
り、かつ、このブラケツト49は枢支ピン52
a,52bを介して取り付け部材50に回動自在
に取り付けられ、当該取り付け部材50は、ネジ
51を介して上仕切板29に取り付けられてい
る。 That is, the pressing member 46 is the star-shaped member 45a,
It consists of a rotating shaft 48 to which a rotating shaft 45b is rotatably attached, and a bracket 49 that holds the rotating shaft 48, and this bracket 49 is attached to a pivot pin 52.
It is rotatably attached to the attachment member 50 via a and 52b, and the attachment member 50 is attached to the upper partition plate 29 via screws 51.
そして、一方の星形部材45aは搬送ベルト3
9bと搬送仕切板47bとの間に対応位置し、他
方の星形部材45bは搬送仕切板47bと搬送ベ
ルト39cとの間に対応位置している。 One star-shaped member 45a is connected to the conveyor belt 3.
9b and the transport partition plate 47b, and the other star-shaped member 45b is located between the transport partition plate 47b and the transport belt 39c.
また、前記ブラケツト49と上仕切板29との
間には、第5図において前記ブラケツト49を矢
符B方向に付勢する保持バネ53が枢支ピン52
aまわりに設けられている。 Further, between the bracket 49 and the upper partition plate 29, a retaining spring 53 that urges the bracket 49 in the direction of arrow B in FIG.
It is located around a.
更に、前記上仕切板29の一部に、下方に向か
つて開放した凹入部30を形成する一方、前記ブ
ラケツト49の係止部49dを係合する係止片5
4′を備えたストツパー54を、矢符E−F方向
にスライド自在の状態で前記凹入部30に設け、
かつ、このストツパー54を矢符F方向に付勢さ
せるバネ55を、前記ストツパー54の係止孔5
4aと上仕切板29に付設の取り付け板29′と
にわたつて装着してある。 Furthermore, a recessed portion 30 that opens downward is formed in a part of the upper partition plate 29, and a locking piece 5 that engages the locking portion 49d of the bracket 49 is formed.
4' is provided in the recessed part 30 in a state where it can freely slide in the direction of arrow E-F,
The spring 55 that biases the stopper 54 in the direction of arrow F is inserted into the locking hole 5 of the stopper 54.
4a and a mounting plate 29' attached to the upper partition plate 29.
尚、前記ブラケツト49は、背板49aと、そ
の両側下方に延設された脚49b,49c、及
び、係止部49dから成り、前記脚49b,49
cの下端近傍には、前記回転軸48を回転かつ上
下動自在に保持する長孔49b′,49c′が穿設さ
れている。 The bracket 49 consists of a back plate 49a, legs 49b, 49c extending downward on both sides of the back plate 49a, and a locking portion 49d.
Elongated holes 49b' and 49c' for holding the rotary shaft 48 rotatably and movably up and down are bored near the lower end of c.
而して、前記押圧部材46の星形部材45a,
45bが作用位置に切り換えられ、かつ、前記搬
送ベルト39a,39b,39c,39dが非給
紙下にある時には、前記星形部材45a,45b
の最下端が搬送ベルト39b,39cと搬送仕切
板47bとの間に入り込んで、搬送ベルト39
b,39cの上面よりもやゝ下方に位置し、給紙
下においては、搬送ベルト39a,39b,39
c,39dによつて搬送される複写紙の先端部で
星形部材45a,45bが長孔49b′,49c′の
範囲内で持ち上げられ、爾後は、当該星形部材4
5a,45bが点接触の状態で複写紙上面を押圧
しつつ複写紙の搬送に伴つて従動回転するように
なつている。 Thus, the star-shaped member 45a of the pressing member 46,
45b is switched to the working position and the conveyor belts 39a, 39b, 39c, 39d are in the non-feeding position, the star-shaped members 45a, 45b
The lowermost end of the conveyor belt 39 enters between the conveyor belts 39b, 39c and the conveyor partition plate 47b, and the conveyor belt 39
The conveyor belts 39a, 39b, 39 are located slightly below the upper surfaces of the conveyor belts 39a, 39c, and
The star-shaped members 45a, 45b are lifted within the range of the elongated holes 49b', 49c' at the leading end of the copy paper conveyed by
5a and 45b press the top surface of the copy paper in a point contact state and are driven to rotate as the copy paper is conveyed.
尚、第5図中の56は、前記ブラケツト49の
背板49aの背面に設けられたマグネツトで、前
記バネ55の付勢力に抗してブラケツト49の揺
動を阻止するストツパーを兼用しながら、前記星
形部材45a,45bを作用位置に保持させる機
能を持つものであるが、必ずしも設ける必要はな
い。 5 is a magnet provided on the back surface of the back plate 49a of the bracket 49, which doubles as a stopper for preventing the bracket 49 from swinging against the biasing force of the spring 55. Although it has the function of holding the star-shaped members 45a, 45b in the operating position, it is not necessary to provide it.
上記の構成によれば、前記押圧部材46を凹入
部30に納めさせるように前記ブラケツト49を
回動させて、当該ブラケツト49の係止部49d
をストツパー54の係止片54′に係止させるこ
とで、前記星形部材45a,45bが複写紙の押
圧に関与しない非作用位置(第5図に仮想線で示
す)に保持される。 According to the above configuration, the bracket 49 is rotated so that the pressing member 46 is housed in the recessed part 30, and the locking part 49d of the bracket 49 is rotated.
By locking the star-shaped members 45a and 45b with the locking piece 54' of the stopper 54, the star-shaped members 45a and 45b are held in a non-active position (shown by phantom lines in FIG. 5) where they do not participate in pressing the copy paper.
また、前記バネ55の付勢力に抗してストツパ
ー54を矢符E方向に移動させ、前記係止部49
dに対する係止片54′の係合を解除させて、前
記ブラケツト49を矢符B方向に付勢揺動させる
と共に、当該ブラケツト背部のマグネツト56を
上仕切板29に磁気吸着させることで、前記星形
部材45a,45bが複写紙の押圧に関与する作
用位置(第5図に実線で示す)に切り換えられ
る。 Also, the stopper 54 is moved in the direction of arrow E against the biasing force of the spring 55, and the locking portion 49
By disengaging the locking piece 54' from the bracket 49, the bracket 49 is biased and swung in the direction of the arrow B, and the magnet 56 on the back of the bracket is magnetically attracted to the upper partition plate 29. The star-shaped members 45a, 45b are switched to their active positions (shown in solid lines in FIG. 5) in which they take part in pressing the copy paper.
尚、前記押圧部材46の矢符A−B間にわたる
回動ならびにストツパー54の矢符E−F方向の
移動を、モータやソレノイド等によつて電気的に
駆動させるようにしてもよい。 Note that the rotation of the pressing member 46 between arrows A and B and the movement of the stopper 54 in the direction of arrows EF may be electrically driven by a motor, a solenoid, or the like.
上述のように構成した複写機において、A4サ
イズやB5サイズといつた通常サイズの複写紙を
搬送ベルト39の給紙対象にする場合は、第5図
に仮想線で示すように、前記星形部材45a,4
5bを非作用位置に切り換え保持させておけばよ
く、従来のこの種複写機と全く同様にしてコピー
動作が行われる。 In the copying machine configured as described above, when normal size copy paper such as A4 size or B5 size is to be fed to the conveyor belt 39, the star-shaped Members 45a, 4
5b can be switched to the non-operating position and kept there, and the copying operation can be carried out in exactly the same manner as in conventional copying machines of this type.
一方、葉書等の小サイズで腰の強い複写紙を給
紙対象にする場合は、前記星形部材45a,45
bを作用位置に切り換えさせた上で所定のコピー
動作が行われる。 On the other hand, when feeding small-sized and stiff copy paper such as postcards, the star-shaped members 45a, 45
A predetermined copying operation is performed after switching b to the active position.
このように、前記星形部材45a,45bを作
用位置に切り換えると、前記搬送ベルト39a,
39b,39c,39dが非給紙下にある時に
は、既述したように、前記星形部材45a,45
bの最下端が搬送ベルト39b,39cの条間に
入り込んでいるので、星形部材45a,45bに
よる負荷が搬送ベルト39b,39cにかゝるこ
とはなく、而して、搬送ベルト39b,39cの
傷付きや摩耗が防止される。 In this way, when the star-shaped members 45a, 45b are switched to the operating position, the conveyor belts 39a,
When 39b, 39c, and 39d are in the non-sheet feeding state, as described above, the star-shaped members 45a, 45
Since the lowermost end of ``b'' is inserted between the strips of the conveyor belts 39b, 39c, the load from the star-shaped members 45a, 45b is not applied to the conveyor belts 39b, 39c. This prevents scratches and wear.
そして、前記星形部材45a,45bは、非給
紙下においてその最下端が搬送ベルト39b,3
9cの上面よりもやゝ下方に位置しているので、
搬送ベルト39a,39b,39c,39dによ
つて複写紙が搬送されてくると、複写紙の先端部
が当該星形部材45a,45bに当接するに伴つ
て持ち上げられ、爾後は、複写紙が星形部材45
a,45bの下方を通過するまで、星形部材45
a,45bが点接触の状態で複写紙上面を押圧し
つつ従動回転する。 The star-shaped members 45a, 45b have their lowermost ends connected to the conveyor belts 39b, 39b when paper is not fed.
Since it is located slightly below the top surface of 9c,
When the copy paper is conveyed by the conveyor belts 39a, 39b, 39c, and 39d, the leading edge of the copy paper comes into contact with the star-shaped members 45a and 45b and is lifted up. shaped member 45
a, 45b until the star-shaped member 45
a and 45b rotate in a driven manner while pressing the top surface of the copy paper in a state of point contact.
従つて、第1図に実線P1で示したように、複
写紙が反り返り気味のものであつても、あるいは
同図に仮想線P2で示したように、複写紙の先端
側が傾斜ガイドに到達した状態で当該複写紙の後
端側が搬送ベルトに接触する状況になるとして
も、給紙方向の全域にわたつて星形部材45a,
45bが従動回転しつつ複写紙を押圧すること
で、当該複写紙が搬送ベルト39a,39b,3
9c,39dによつて確実に搬送され、かつ、星
形部材45a,45bは複写紙上面に点接触する
だけであるから、複写紙上面に形成されている未
定着画像に及ぼす悪影響は殆どない。 Therefore, even if the copy paper is slightly curled, as shown by the solid line P1 in FIG. Even if the trailing edge side of the copy paper comes into contact with the conveyor belt when the paper reaches the state, the star-shaped member 45a,
45b rotates and presses the copy paper, so that the copy paper is transferred to the conveyor belts 39a, 39b, 3.
9c and 39d, and the star-shaped members 45a and 45b only make point contact with the upper surface of the copy paper, so that there is almost no adverse effect on the unfixed image formed on the upper surface of the copy paper.
上述の実施例は、押圧部材46を上仕切板29
に回動自在に取り付けて、必要に応じて使用する
時以外は押圧部材46の星形部材45a,45b
を非作用位置に切り換えられるように構成してい
るが、本考案はこれに限られるものではなく、前
記星形部材45a,45bを複写紙の押圧に関与
させないように、前記押圧部材46を複写機に対
して着脱自在に構成するもよい。 In the above embodiment, the pressing member 46 is connected to the upper partition plate 29.
The star-shaped members 45a and 45b of the pressing member 46 are attached rotatably to the press member 46 when not in use as necessary.
Although the present invention is not limited to this, the pressing member 46 can be switched to a non-operating position so that the star-shaped members 45a and 45b are not involved in pressing the copy paper. It may also be configured to be detachable from the machine.
この場合、複写機に対する押圧部材46の取り
付け状態において、前記星形部材45a,45b
を搬送ベルト39b,39cの条間に対応させて
且つ上下に位置変更自在に設けて、非給紙下では
当該星形部材45a,45bの最下端を搬送ベル
ト39b,39cの条間に入り込ませると共に、
給紙下では複写紙先端部によつて星形部材45
a,45bを持ち上げさせて当該星形部材45
a,45bを複写紙上面に点接触させるように構
成することが肝要である。 In this case, when the pressing member 46 is attached to the copying machine, the star-shaped members 45a, 45b
are provided so as to correspond to the gaps between the conveyor belts 39b and 39c and to be freely changeable in position up and down, so that the lowermost ends of the star-shaped members 45a and 45b enter between the lines of the conveyor belts 39b and 39c when paper is not being fed. With,
Under paper feeding, the star-shaped member 45 is attached by the leading edge of the copy paper.
a, 45b and lift the star-shaped member 45.
It is important to configure the portions a and 45b so that they are in point contact with the top surface of the copy paper.
このように、押圧部材46を着脱自在に構成す
る実施例を第6図および第7図に示す。同図にお
いて、60は押圧部材で、例えば上仕切板29の
下面に着脱自在に取り付けられている。即ち、押
圧部材60は、回転軸61に取り付けられた2個
の星形部材62a,62bと、前記回転軸61を
保持するブラケツト63とから主として構成され
ている。 An embodiment in which the pressing member 46 is configured to be detachable in this manner is shown in FIGS. 6 and 7. In the figure, reference numeral 60 denotes a pressing member, which is detachably attached to the lower surface of the upper partition plate 29, for example. That is, the pressing member 60 is mainly composed of two star-shaped members 62a and 62b attached to the rotating shaft 61, and a bracket 63 that holds the rotating shaft 61.
そして、ブラケツト63は、例えば背板63a
と、その両側下方に延設された脚63b,63c
と、この脚63b,63cの途中から外方に向か
つて上方に延設され先端に係止爪63d′,63
e′をそれぞれ有し且つ弾性を備えた係止腕63
d,63eと、前記背板63aの背面より略水平
に延設され先端に係合部63f′,63g′をそれぞ
れ有する取り付け片63f,63gとより成り、
前記脚63b,63cの下端近傍には長孔63
b′,63c′が穿設され、これらの長孔63b′,6
3c′内に前記回転軸61が回転かつ上下動自在に
保持されている。 The bracket 63 is, for example, a back plate 63a.
and legs 63b, 63c extending downward on both sides thereof.
The legs 63b, 63c have locking claws 63d', 63 at their tips extending outward and upward from the middle.
Locking arms 63 each having elasticity and e'
d, 63e, and mounting pieces 63f, 63g extending substantially horizontally from the back surface of the back plate 63a and having engaging portions 63f', 63g' at their tips, respectively;
A long hole 63 is located near the lower end of the legs 63b, 63c.
b', 63c' are drilled, and these long holes 63b', 6
The rotary shaft 61 is held within 3c' so as to be rotatable and movable up and down.
上述のように構成された押圧部材60を搬送装
置41の上部に取り付けるには、例えば上仕切板
29の下面に取り付けられた排気用孔29a内に
前記取り付け片63f,63gを挿入して、それ
ぞれの係合部63f′,63g′を前記孔29aの周
縁で係止させると共に、前記係止腕63d,63
eのそれぞれの係止爪63d′,63e′を前記孔2
9aの周縁に係合させる。前記係止腕63d,6
3eは外方への弾性力を有しているので、前記押
圧部材60を上仕切板29の下面に強固に取り付
けることができる。 In order to attach the pressing member 60 configured as described above to the upper part of the conveying device 41, for example, the attachment pieces 63f and 63g are inserted into the exhaust hole 29a attached to the lower surface of the upper partition plate 29, and The engaging portions 63f', 63g' are locked at the periphery of the hole 29a, and the locking arms 63d, 63
The respective locking claws 63d' and 63e' of
Engage with the peripheral edge of 9a. The locking arms 63d, 6
3e has an outward elastic force, so that the pressing member 60 can be firmly attached to the lower surface of the upper partition plate 29.
押圧部材60を上仕切板29から取り外すに
は、係止腕63d,63eをそれぞれ脚63b,
63cの方向に押圧して、係止爪63d′,63
e′と孔29aとの係合を解除し、当該係止爪63
d′,63e′を係合部63f′,63g′と共に孔29
aから抜き出すことで達成される。 To remove the pressing member 60 from the upper partition plate 29, the locking arms 63d and 63e are connected to the legs 63b and 63e, respectively.
63c, locking claws 63d', 63
Release the engagement between e' and the hole 29a, and
d' and 63e' are inserted into the hole 29 together with the engaging parts 63f' and 63g'.
This is achieved by extracting from a.
この実施例のように、押圧部材60を複写機に
対して着脱自在としたものは、特に搬送装置41
の上部に押圧部材60を収納するスペースがない
ような複写機において効果がある。 As in this embodiment, the pressing member 60 is detachably attached to the copying machine, in particular, the conveying device 41
This is effective in copying machines where there is no space above the press member 60 to accommodate the pressing member 60.
また、取り付け片63f,63gの取り付けピ
ツチを上仕切板29に形成の排気用孔29aの数
ピツチ分に設定する等して上仕切板29との整合
性をとつておけば、従来の複写機にも簡単に着脱
自在に取り付けることができ、あるいは、複写紙
の搬送位置に対応して取り付けることもできる。 In addition, if the mounting pitch of the mounting pieces 63f and 63g is set to several pitches of the exhaust holes 29a formed in the upper partition plate 29 to ensure consistency with the upper partition plate 29, it is possible to use a conventional copying machine. It can be easily attached to and detached from the printer, or it can be attached in accordance with the conveying position of the copy paper.
尚、上述の実施例では、何れも星形部材を2個
45a,45b,62a,62b設けたものを示
しているが、これに限られることはなく、個数を
変更して実施可能である。 In the above-described embodiments, two star-shaped members 45a, 45b, 62a, and 62b are provided, but the present invention is not limited to this, and the number can be changed.
更に、搬送ベルト39a,39b,39c,3
9dの間に搬送仕切板47a,47b,47cを
設けているが、これに限られるものでないことは
いうまでもない。 Further, conveyor belts 39a, 39b, 39c, 3
Although conveyance partition plates 47a, 47b, and 47c are provided between 9d, it goes without saying that the present invention is not limited to this.
以上説明したように本考案は、複写紙の上面に
点接触して従動回転する複写紙押圧用の星形部材
を、前記搬送ベルトの条間に対応させて且つ上下
に位置変更自在に設けて、給紙下において、最下
端が搬送ベルトの条間に入り込んでいる星形部材
を複写紙の先端部で持ち上げさせて、爾後は、複
写紙が星形部材の下方を通過するまで、星形部材
を点接触の状態で複写紙上面に押圧させつつ従動
回転させるようにしたので、レジストローラと定
着ローラとの間の寸法を無闇に短くすることがで
きないという構成上の制約を受けながらも、腰の
強い小サイズの複写紙を確実に搬送させることが
可能となり、しかも、前記星形部材は複写紙上面
に点接触するだけであるから、複写紙上面に形成
されている未定着画像に悪影響を及ぼすことは殆
どない。
As explained above, in the present invention, a star-shaped member for pressing the copy paper, which contacts the top surface of the copy paper at a point and rotates as a result, is provided in correspondence with the grooves of the conveyor belt and whose position can be freely changed up and down. , while the paper is being fed, the star-shaped member whose lowest end is inserted between the strips of the conveyor belt is lifted by the leading edge of the copy paper, and then the star-shaped member is held up until the copy paper passes under the star-shaped member. Since the member is pressed against the top surface of the copying paper in a point contact state and rotated in a driven manner, it is possible to achieve this even though the size between the registration roller and the fixing roller cannot be shortened arbitrarily. This makes it possible to reliably convey stiff, small-sized copy paper, and since the star-shaped member only makes point contact with the top surface of the copy paper, it does not adversely affect unfixed images formed on the top surface of the copy paper. There is almost no effect on
そして、非給紙下では、前記星形部材を搬送ベ
ルトの条間に入り込ませるようにしているので、
非給紙下において前記搬送ベルトに星形部材の負
荷がかゝることはなく、従つて、星形部材によつ
て搬送ベルトが傷付けられたり摩耗したりするこ
とが防止される。 Then, when the paper is not being fed, the star-shaped member is inserted between the strips of the conveyor belt, so that
The load of the star-shaped member is not applied to the conveyor belt when paper is not being fed, and therefore, the conveyor belt is prevented from being damaged or worn by the star-shaped member.
第1図は従来の複写機における複写紙の搬送装
置を示す断面図、第2図は本考案を適用した静電
写真複写機の概略構成図、第3図は搬送装置の近
傍を示す斜視図、第4図は押圧部材を回動自在に
取り付けた状態の一例を示す斜視図、第5図は同
上縦断側面図、第6図は押圧部材を着脱自在に取
り付けた状態の一例を示す斜視図、第7図は同上
縦断側面図である。
39,39a,39b,39c,39d……搬
送ベルト、42……定着装置、45a,45b,
62a,62b……星形部材。
FIG. 1 is a sectional view showing a copy paper conveying device in a conventional copying machine, FIG. 2 is a schematic configuration diagram of an electrostatographic copying machine to which the present invention is applied, and FIG. 3 is a perspective view showing the vicinity of the conveying device. , FIG. 4 is a perspective view showing an example of a state in which the pressing member is rotatably attached, FIG. 5 is a vertical cross-sectional side view of the same, and FIG. 6 is a perspective view showing an example of the state in which the pressing member is detachably attached. , FIG. 7 is a longitudinal sectional side view of the same. 39, 39a, 39b, 39c, 39d...Transport belt, 42...Fixing device, 45a, 45b,
62a, 62b...star-shaped members.
Claims (1)
隔てて並置された複数条の搬送ベルトによつて
定着装置に導くようにした複写機における複写
紙の搬送装置において、前記複写紙の上面に点
接触して従動回転する複写紙押圧用の星形部材
を、前記搬送ベルトの条間に対応させて且つ上
下に位置変更自在に設けて、非給紙下では当該
星形部材の最下端を搬送ベルトの条間に入り込
ませると共に、給紙下では複写紙先端部によつ
て星形部材を持ち上げさせて当該星形部材を複
写紙上面に点接触させるように構成してあるこ
とを特徴とする複写機における複写紙の搬送装
置。 (2) 前記星形部材を、複写紙の押圧に関与する作
用位置と複写紙の押圧に関与しない非作用位置
とに切り換え自在に構成してあることを特徴と
する実用新案登録請求の範囲第(1)項に記載の複
写機における複写紙の搬送装置。 (3) 前記星形部材を、複写紙の押圧に関与させな
いように取り外し可能に構成してあることを特
徴とする実用新案登録請求の範囲第(1)項に記載
の複写機における複写紙の搬送装置。[Claims for Utility Model Registration] (1) Copy paper on which an unfixed image is formed is guided to a fixing device by a plurality of conveyor belts arranged side by side at predetermined intervals. In the conveyance device, a star-shaped member for pressing the copy paper that contacts the upper surface of the copy paper and rotates under the control is provided in correspondence with the grooves of the conveyance belt and can be vertically changed in position, so that the sheet is not fed. At the bottom, the lowest end of the star-shaped member enters between the strips of the conveyor belt, and at the same time, at the bottom of paper feed, the star-shaped member is lifted by the leading edge of the copy paper to bring it into point contact with the top surface of the copy paper. A copy paper conveying device in a copying machine, characterized in that it is configured as follows. (2) Utility model registration claim 1, characterized in that the star-shaped member is configured to be switchable between an active position where it is involved in pressing the copy paper and an inactive position where it is not involved in pressing the copy paper. A copy paper conveyance device in the copying machine described in paragraph (1). (3) In the copying machine according to claim (1) of the utility model registration claim, the star-shaped member is configured to be removable so as not to be involved in pressing the copy paper. Conveyance device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4363984U JPS60154331U (en) | 1984-03-24 | 1984-03-24 | Copy paper conveyance device in a copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4363984U JPS60154331U (en) | 1984-03-24 | 1984-03-24 | Copy paper conveyance device in a copying machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60154331U JPS60154331U (en) | 1985-10-15 |
JPH0318448Y2 true JPH0318448Y2 (en) | 1991-04-18 |
Family
ID=30555492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4363984U Granted JPS60154331U (en) | 1984-03-24 | 1984-03-24 | Copy paper conveyance device in a copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60154331U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5032769B2 (en) * | 2003-03-25 | 2012-09-26 | アークレイ株式会社 | Sensor storage container |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2797316B2 (en) * | 1988-05-16 | 1998-09-17 | 富士ゼロックス株式会社 | Special paper feeder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5384718A (en) * | 1976-12-29 | 1978-07-26 | Savin Business Machines Corp | Sheet feeding system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53148642U (en) * | 1977-04-27 | 1978-11-22 | ||
JPS578035Y2 (en) * | 1977-07-01 | 1982-02-16 | ||
JPS55181247U (en) * | 1979-06-11 | 1980-12-26 | ||
JPS58178150U (en) * | 1982-05-22 | 1983-11-29 | 京セラミタ株式会社 | Copy machine |
-
1984
- 1984-03-24 JP JP4363984U patent/JPS60154331U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5384718A (en) * | 1976-12-29 | 1978-07-26 | Savin Business Machines Corp | Sheet feeding system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5032769B2 (en) * | 2003-03-25 | 2012-09-26 | アークレイ株式会社 | Sensor storage container |
Also Published As
Publication number | Publication date |
---|---|
JPS60154331U (en) | 1985-10-15 |
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