JPH107270A - Paper feeding tray drawing device - Google Patents

Paper feeding tray drawing device

Info

Publication number
JPH107270A
JPH107270A JP8159303A JP15930396A JPH107270A JP H107270 A JPH107270 A JP H107270A JP 8159303 A JP8159303 A JP 8159303A JP 15930396 A JP15930396 A JP 15930396A JP H107270 A JPH107270 A JP H107270A
Authority
JP
Japan
Prior art keywords
guide
feed tray
paper feed
stopper
protrusion
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.)
Granted
Application number
JP8159303A
Other languages
Japanese (ja)
Other versions
JP3472412B2 (en
Inventor
Eisuke Hori
英介 堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP15930396A priority Critical patent/JP3472412B2/en
Publication of JPH107270A publication Critical patent/JPH107270A/en
Application granted granted Critical
Publication of JP3472412B2 publication Critical patent/JP3472412B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Paper Feeding For Electrophotography (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent falling of a paper feeding tray and to improve operativity of removal of the paper feeding tray. SOLUTION: A projected part 7 projected outside and a stepped recessed part 8 arranged on the front side of the projectd part 7 and an upper surface of which is recessed are formed in the neighbourhood of a rear end of a guide 6 projected from both side surfaces of a paper feeding tray 3, a stopper 15 is formed on the front side of a guide rail 10, a cutout 14 is formed in the neighbourhood of an end part of the front side of a guide presser 12 of the guide rail 10, in a state where an upper surface of the projected part 7 faces against a part of the guide presser 12 except for the cutout 14, floating of the guide 6 from a guide support 11 is restrained by the guide presser 12, and even in the case when the paper feeding tray 3 is inclined and drawn out, falling of the paper feeding tray 3 is certainly prevented by contact of the projected part 7 and the stopper 15 with each other. Additionally, the paper feeding tray 3 can be easily removed from the guide rail 10 while projecting the projected part 7 from the cutout 14 by floating the guide 6 from the guide support 11 in parallel.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、画像形成装置に利
用される給紙トレイ引出装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feed tray drawing device used in an image forming apparatus.

【0002】[0002]

【従来の技術】近来、装置本体に給紙トレイを収納し、
用紙の交換や補充に際しては給紙トレイを引き出すよう
にした画像形成装置がある。このような画像形成装置に
おいては、給紙トレイを引き出す際に装置本体からの脱
落を防止することが安全規格として定められている。こ
のために、給紙トレイの両側を引出自在に支持するガイ
ドレールを装置本体に設け、このガイドレールの手前側
にストッパを設け、これらのストッパに当接する当接部
材を給紙トレイの両側の後端部に取り付け、不用意に給
紙トレイを引き出した場合には、ガイドレールのストッ
パに給紙トレイの当接部材を当接させることにより、装
置本体からの給紙トレイの脱落を防止している。
2. Description of the Related Art In recent years, a paper feed tray has been housed in an apparatus body,
2. Description of the Related Art There is an image forming apparatus that pulls out a paper feed tray when replacing or replenishing paper. In such an image forming apparatus, it is defined as a safety standard to prevent the image forming apparatus from dropping out of the apparatus main body when the sheet feeding tray is pulled out. For this purpose, a guide rail for supporting both sides of the paper feed tray so as to be able to be pulled out is provided on the main body of the apparatus, stoppers are provided on the front side of the guide rail, and contact members which contact these stoppers are provided on both sides of the paper feed tray. If the paper tray is attached to the rear end and the paper tray is pulled out carelessly, the paper tray can be prevented from dropping from the main body by contacting the paper tray contact member with the stopper on the guide rail. ing.

【0003】[0003]

【発明が解決しようとする課題】前述した構成では、メ
ンテナンスに際して給紙トレイの取り外しの操作性に難
がある。逆に、給紙トレイを傾けながら引き出すことに
より、給紙トレイの取り外しの操作性を優先した装置が
あるが、このような装置は、不用意に操作すると給紙ト
レイが装置本体から脱落して操作する人の足の上に落下
したり、給紙トレイが破損する等のおそれがある。
In the above-described configuration, the operability of removing the paper feed tray during maintenance is difficult. Conversely, there is a device that gives priority to the operability of removing the paper tray by pulling out the paper tray while tilting it.However, if such a device is operated carelessly, the paper tray falls off from the main body of the device. There is a possibility that the paper feed tray may fall on the foot of the operator or the paper feed tray may be damaged.

【0004】本発明は、給紙トレイの脱落を確実に防止
し、且つ、給紙トレイの取り外しの操作性の向上を図り
得る給紙トレイ引出装置を提供することを目的とする。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a paper feed tray drawer capable of reliably preventing the paper feed tray from falling off and improving the operability of removing the paper feed tray.

【0005】[0005]

【課題を解決するための手段】請求項1の発明の給紙ト
レイ引出装置は、給紙トレイの両側面から突出するガイ
ドの底面を支えるガイド支えと、前記ガイドの上面に対
向するガイド押えとを有する左右一対のガイドレールを
設け、前記ガイドの奥側の後端付近に外側方向に突出す
る突部を形成し、前記ガイドの少なくとも前記突部の手
前側における上面に凹状の段付凹部を形成し、前記突部
に当接することにより前記給紙トレイの引き出し長さを
制限するストッパを前記ガイド押えの手前側の端部の近
傍に形成し、前記ガイド押えの手前側の端部の近傍に、
奥側に向けて所定の長さで切り欠かれて前記ガイドの全
底面を前記ガイド支えから浮かせた状態でのみ前記スト
ッパの上部空間において前記給紙トレイの引き出し方向
に沿う前記突部の移動を許容する切欠を形成した。した
がって、突部の上面が切欠以外のガイド押えの部分に対
向する状態では、ガイド支えからのガイドの浮きがガイ
ド押えにより抑制される。したがって、給紙トレイを傾
けて引き出した場合でも突部とストッパとの当接により
ガイドレールからの給紙トレイの脱落が阻止される。ま
た、ガイドの上面には突部の手前側にガイド押えとの間
隔を広げる段付凹部が形成されているため、突部がスト
ッパに当接する状態でガイド支えからガイドを平行に浮
かせた場合にのみ、ガイドをガイド押えで押えることな
く突部を切欠から突出させ、その状態で突部をストッパ
の上部空間において引き出し方向に移動させてストッパ
の手前側に位置させることが可能となる。
According to a first aspect of the present invention, there is provided a paper feed tray pull-out device, comprising: a guide support for supporting a bottom surface of a guide protruding from both side surfaces of a paper feed tray; and a guide presser opposing the upper surface of the guide. A pair of left and right guide rails having: a protruding portion protruding outward in the vicinity of the rear end on the back side of the guide; A stopper for limiting the draw-out length of the paper feed tray by contacting the protrusion is formed near an end on the near side of the guide presser, and near a front end of the guide presser. To
The movement of the protrusion along the drawing direction of the paper feed tray in the space above the stopper only in a state where the entire bottom surface of the guide is cut away at a predetermined length toward the back side and the entire bottom surface of the guide is lifted from the guide support. An acceptable notch was formed. Therefore, in a state where the upper surface of the projection faces the portion of the guide retainer other than the notch, floating of the guide from the guide support is suppressed by the guide retainer. Therefore, even when the sheet feed tray is tilted and pulled out, the contact between the protrusion and the stopper prevents the drop of the sheet feed tray from the guide rail. In addition, since the upper surface of the guide is provided with a stepped recess on the front side of the protrusion that widens the distance from the guide presser, the guide is lifted in parallel from the guide support while the protrusion contacts the stopper. Only when the protrusion is projected from the notch without pressing the guide with the guide retainer, in this state, the protrusion can be moved in the pull-out direction in the upper space of the stopper and positioned in front of the stopper.

【0006】ここで、手前側、奥側とは、給紙トレイの
引き出し方向に対応する位置を示す。
Here, the near side and the far side indicate positions corresponding to the pulling-out direction of the sheet feeding tray.

【0007】請求項2の発明は、請求項1記載の給紙ト
レイ引出装置において、ガイドには、突部を間にして手
前側と奥側とに配置された段付凹部が形成されている。
したがって、突部がストッパに当接するまで給紙トレイ
を引き出した状態において、給紙トレイの手前側を不用
意に押し下げた場合には、ガイドの底部を支えるガイド
支えの手前側の縁を支点として突部が切欠の上方に突出
する方向に給紙トレイが傾くが、その傾きは突部から後
方に延出する段付凹部の後端縁とガイド押えとの当接に
より抑制されるため、ストッパの上方への突部の動きが
阻止される。
According to a second aspect of the present invention, in the paper feed tray pull-out device according to the first aspect, the guide has stepped concave portions disposed on the front side and the rear side with the protrusions interposed therebetween. .
Therefore, when the paper feed tray is pulled out until the protrusion comes into contact with the stopper, and the front side of the paper feed tray is inadvertently pressed down, the edge of the guide support supporting the bottom of the guide is used as a fulcrum. The paper feed tray is inclined in the direction in which the protrusion projects above the notch, but the inclination is suppressed by the contact between the rear end edge of the stepped recess extending rearward from the protrusion and the guide presser. The upward movement of the projection is prevented.

【0008】[0008]

【発明の実施の形態】本発明の実施の第一の形態を図面
に基づいて説明する。まず、図2に画像形成装置として
の複写機1の全体構成を示す。この複写機1の装置本体
2には、複数の給紙トレイ3が引き出し自在に収納され
ている。これらの給紙トレイ3には、多数枚の用紙を積
層状態で収納する用紙収納部4と、前面に配置された凹
状の把手5と、両側面から外側に突出する細長いガイド
6とが形成されている。これらのガイド6の奥側の後端
の近傍には外側に突出する突部7が形成されている。ま
た、ガイド6の上面には、突部7を間にして手前側と奥
側とに配置された段付凹部8,9が形成されている。し
たがって、突部7の上面は、段付凹部8,9以外のガイ
ド6の上面と同一の高さに定められているが、段付凹部
8,9に対しては上方にも突出されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to the drawings. First, FIG. 2 shows an entire configuration of a copying machine 1 as an image forming apparatus. A plurality of paper feed trays 3 are housed in the apparatus main body 2 of the copying machine 1 so as to be freely drawn out. These paper feed trays 3 are formed with a paper storage unit 4 for storing a large number of papers in a stacked state, a concave handle 5 arranged on the front surface, and an elongated guide 6 protruding outward from both side surfaces. ing. Protrusions 7 projecting outward are formed near the rear ends of these guides 6 on the rear side. On the upper surface of the guide 6, stepped recesses 8 and 9 are formed on the front side and the back side with the protrusion 7 interposed therebetween. Therefore, the upper surface of the protrusion 7 is set at the same height as the upper surface of the guide 6 except for the stepped recesses 8 and 9, but also protrudes upward from the stepped recesses 8 and 9. .

【0009】また、前記給紙トレイ3を引き出し自在に
支持する左右一対のガイドレール10が前記装置本体2
に固定的に設けられている。これらのガイドレール10
は、前記ガイド6の底面を支えるガイド支え11と、ガ
イド6の上面に対向するガイド押え12と、ガイド6の
外側面に対向する側面13とを有して内方が開放された
コの字形の断面形状に形成されている。そして、ガイド
押え12には、その手前側の端部の近傍から奥側に向け
て所定の長さに定めて切り欠かれた切欠14が形成さ
れ、側面13にはストッパ15が切り起こされた状態で
形成されている。
A pair of left and right guide rails 10 for supporting the paper feed tray 3 so as to be able to be pulled out are provided on the apparatus main body 2.
Is fixedly provided. These guide rails 10
Is a U-shape having a guide support 11 for supporting the bottom surface of the guide 6, a guide presser 12 facing the upper surface of the guide 6, and a side surface 13 facing the outer surface of the guide 6, and having an open inside. Is formed in the cross-sectional shape. The guide presser 12 has a notch 14 formed at a predetermined length from the vicinity of the front end thereof toward the back, and a stopper 15 is cut and raised on the side surface 13. It is formed in a state.

【0010】ここで、ガイド6とガイドレール10との
関係を上方から見た様子を図3に、ガイド6とガイドレ
ール10との関係を側面から見た様子を図4に示す。前
記突部7の上面及び前記段付凹部8,9以外のガイド6
の上面は前記ガイド押え12に対しては所定の間隔で対
向するが、段付凹部8,9の上面はガイド押え12に対
しては比較的大きな間隔で対向する。
FIG. 3 shows the relationship between the guide 6 and the guide rail 10 as viewed from above, and FIG. 4 shows the relationship between the guide 6 and the guide rail 10 as viewed from the side. A guide 6 other than the upper surface of the protrusion 7 and the stepped recesses 8 and 9
Are opposed to the guide retainer 12 at a predetermined interval, but the upper surfaces of the stepped recesses 8 and 9 are opposed to the guide retainer 12 at a relatively large interval.

【0011】また、図3(a)に示すように、前記スト
ッパ15は、前記切欠14の中間部における下方に配置
されている。ここで、給紙トレイ3の引き出し方向に沿
う方向において、切欠14の長さをA、突部7の長さを
B、ストッパ15の長さをCとすると、Aは2B+Cと
同等又はそれよりやや大きい寸法に定められている。ま
た、ストッパ15の上下方向の位置は、図4(a)に示
すように、ガイド6の底面の略全域をガイド支え11で
支えた状態では、給紙トレイ3を引き出したときにガイ
ド6の外側に突出する突部7の部分がストッパ15に当
接し、図4(e)に示すように、突部7を切欠14から
突出させるまでガイド6の全底面をガイド支えから浮か
せた状態でのみストッパ15の上部空間における突部7
の移動(給紙トレイ3の引き出し方向に沿う方向の移
動)を許容する位置に定められている。
Further, as shown in FIG. 3A, the stopper 15 is disposed below an intermediate portion of the notch 14. Here, assuming that the length of the cutout 14 is A, the length of the protrusion 7 is B, and the length of the stopper 15 is C in the direction along the drawing direction of the paper feed tray 3, A is equal to or more than 2B + C. It is set to a slightly larger size. The position of the stopper 15 in the vertical direction is such that, when substantially the entire bottom surface of the guide 6 is supported by the guide support 11 as shown in FIG. The portion of the protrusion 7 protruding outward comes into contact with the stopper 15, and as shown in FIG. 4E, only when the entire bottom surface of the guide 6 is lifted from the guide support until the protrusion 7 protrudes from the notch 14. Projection 7 in the space above stopper 15
(Movement in the direction along the pull-out direction of the paper feed tray 3).

【0012】このような構成において、給紙トレイ3を
装置本体2に収納した状態では、図3(a)および図4
(a)に示すように、給紙トレイ3のガイド6の底面の
略全域がガイド支え11により支えられ、突部7はスト
ッパ15よりはるか奥側後方に位置する。この状態で
は、仮にガイド6をガイド支え11に対して平行に浮か
したとしても、ガイド押え12により上方への移動量が
制限されるので、この状態で給紙トレイ3を引き出した
としても突部7はストッパ15に当接する。
In such a configuration, when the paper feed tray 3 is housed in the apparatus main body 2, FIGS.
As shown in (a), substantially the entire bottom surface of the guide 6 of the paper feed tray 3 is supported by the guide support 11, and the protrusion 7 is located farther rearward than the stopper 15. In this state, even if the guide 6 is floated in parallel with the guide support 11, the amount of upward movement is limited by the guide presser 12, so that even if the paper feed tray 3 is pulled out in this state, the protrusion 7 contacts the stopper 15.

【0013】給紙トレイ3を手前側に引き出すと、図3
(b)および図4(b)に示すように、突部7がストッ
パ15に当接するため給紙トレイ3の引き出し長さが制
限される。このときに、4(c)に示すように、給紙ト
レイ3を不用意に上方に傾けながら引き出したとして
も、ガイド押え12の手前側の先端縁がガイド6を押え
るため給紙トレイ3の傾き(ガイド6の傾き)が制限さ
れる。すなわち、突部7は切欠14の下方に達している
にも拘らず上方への移動が制限されるためストッパ15
の上方に外れることはない。
When the paper feed tray 3 is pulled out to the near side, FIG.
As shown in FIG. 4B and FIG. 4B, the protrusion length of the sheet feed tray 3 is limited because the protrusion 7 contacts the stopper 15. At this time, as shown in FIG. 4 (c), even if the paper feed tray 3 is pulled out while being carelessly tilted upward, the front edge of the guide presser 12 presses the guide 6, so that the paper feed tray 3 The inclination (the inclination of the guide 6) is restricted. That is, although the protrusion 7 is restricted from moving upward despite reaching below the notch 14, the stopper 15
Will not come off above.

【0014】突部7がストッパ15に当接する状態にお
いて、図4(d)に示すように、給紙トレイ3を不用意
に下方に傾けながら引き出した場合には、ガイド6の底
部を支えるガイド支え11の手前側の縁を支点として突
部7が切欠14の上方に突出する方向に給紙トレイ3が
傾くが、その傾きは突部7から後方に延出する段付凹部
9の後端縁とガイド押え12との当接により抑制される
ため、突部7がストッパ15の上方に外れることはな
い。
When the paper feed tray 3 is pulled out while inadvertently tilting downward as shown in FIG. 4D in a state where the protrusion 7 comes into contact with the stopper 15, the guide supporting the bottom of the guide 6 is provided. The sheet feed tray 3 is inclined in a direction in which the protrusion 7 projects above the notch 14 with the near edge of the support 11 as a fulcrum, and the inclination is the rear end of the stepped recess 9 extending rearward from the protrusion 7. The protrusion 7 is prevented from coming off above the stopper 15 because it is suppressed by the contact between the edge and the guide presser 12.

【0015】さらに、給紙トレイ3を左右方向に傾けた
としても、少なくとも片側の突部7がストッパ15に当
接する。このように、給紙トレイ3を上下方向又は左右
方向に傾けながら引き出したとして、ガイドレール10
からの給紙トレイ3の脱落を確実に防止することができ
る。
Further, even if the sheet feeding tray 3 is inclined in the left-right direction, at least one of the protrusions 7 contacts the stopper 15. As described above, when the paper feed tray 3 is pulled out while being tilted in the vertical direction or the horizontal direction, the guide rail 10
It is possible to reliably prevent the paper feed tray 3 from falling off.

【0016】ガイドレール10から給紙トレイ3を外す
場合には、図3(b)および図4(b)に示すように、
突部7がストッパ15に当接するまで給紙トレイ3を引
き出した後に、ガイド支え11からガイド6が平行に浮
くように給紙トレイ3を持ち上げる。この状態では突部
7が切欠14の下方に達しているため、図4(e)に示
すように、突部7が切欠14の上方へ突出するまで給紙
トレイ3を持ち上げることができる。このことを可能に
するのは、ガイド6の段付凹部8,9がガイド押え12
に対して比較的広い間隔で対向し、給紙トレイ3の上方
への移動の制限が小さいからである。この状態では突部
7の下面がストッパ15の上縁より上方に変位するた
め、この状態を維持しながら給紙トレイ3を手前側に引
き、図4(f)に示すように、突部7をストッパ15の
手前側に変位させることができる。この状態では、ガイ
ド6の下面をガイド支え11で支えた状態で給紙トレイ
3をさらに手前側に引き出すことにより、給紙トレイ3
をガイドレール10から容易に外すことができる。ま
た、前述した動作の逆の動作により、ガイドレール10
に給紙トレイ3をセットすることができる。
When removing the paper feed tray 3 from the guide rail 10, as shown in FIGS. 3 (b) and 4 (b),
After the paper feed tray 3 is pulled out until the protrusion 7 comes into contact with the stopper 15, the paper feed tray 3 is lifted so that the guide 6 floats in parallel from the guide support 11. In this state, since the protrusion 7 has reached below the notch 14, the sheet feed tray 3 can be lifted until the protrusion 7 protrudes above the notch 14, as shown in FIG. This is made possible by the fact that the stepped recesses 8, 9 of the guide 6 are
This is because the sheet tray 3 is opposed to the sheet tray 3 at a relatively wide interval, and the upward movement of the sheet feed tray 3 is limited. In this state, since the lower surface of the protrusion 7 is displaced upward from the upper edge of the stopper 15, the paper feed tray 3 is pulled toward the front while maintaining this state, and as shown in FIG. Can be displaced to the front side of the stopper 15. In this state, the paper feed tray 3 is further pulled out while the lower surface of the guide 6 is supported by the guide support 11, so that the paper feed tray 3
Can be easily removed from the guide rail 10. In addition, the guide rail 10
The paper feed tray 3 can be set in the printer.

【0017】なお、突部7は段付凹部8,9と共にガイ
ド6に一体に形成され、ストッパ15は切欠14と共に
ガイドレール10に一体に形成されているため、部品点
数を増やすことなく、給紙トレイ3の脱落防止と、ガイ
ドレール10に対する給紙トレイ3の着脱操作性の向上
とを図ることができる。
Since the protrusion 7 is formed integrally with the guide 6 together with the stepped recesses 8 and 9, and the stopper 15 is formed integrally with the guide rail 10 together with the notch 14, the supply is possible without increasing the number of parts. The paper tray 3 can be prevented from falling off, and the operability of attaching and detaching the paper feed tray 3 to and from the guide rail 10 can be improved.

【0018】[0018]

【発明の効果】請求項1の発明によれば、給紙トレイの
両側面から突出するガイドの底面を支えるガイド支え
と、前記ガイドの上面に対向するガイド押えとを有する
左右一対のガイドレールを設け、前記ガイドの奥側の後
端付近に外側方向に突出する突部を形成し、前記ガイド
の少なくとも前記突部の手前側における上面に凹状の段
付凹部を形成し、前記突部に当接することにより前記給
紙トレイの引き出し長さを制限するストッパを前記ガイ
ド押えの手前側の端部の近傍に形成し、前記ガイド押え
の手前側の端部の近傍に、奥側に向けて所定の長さで切
り欠かれて前記ガイドの全底面を前記ガイド支えから浮
かせた状態でのみ前記ストッパの上部空間において前記
給紙トレイの引き出し方向に沿う前記突部の移動を許容
する切欠を形成したので、突部の上面が切欠以外のガイ
ド押えの部分に対向する状態では、ガイド支えからのガ
イドの浮きをガイド押えにより抑制することができる。
したがって、給紙トレイを傾けて引き出した場合でも突
部とストッパとの当接によりガイドレールからの給紙ト
レイの脱落を確実に阻止することができる。また、ガイ
ドの上面には突部の手前側にガイド押えとの間隔を広げ
る段付凹部が形成されているため、突部がストッパに当
接する状態でガイド支えからガイドを平行に浮かせた場
合にのみ、ガイドをガイド押えで押えることなく突部を
切欠から突出させ、その状態で突部をストッパの上部空
間において引き出し方向に移動させてストッパの手前側
に位置させることができる。これにより、ガイドレール
から給紙トレイを容易に外すことができる。
According to the first aspect of the present invention, a pair of left and right guide rails each having a guide support for supporting the bottom surface of a guide projecting from both side surfaces of the paper feed tray and a guide presser opposing the upper surface of the guide are provided. A protruding portion protruding outwardly is formed near the rear end of the guide, and a concave stepped recess is formed on the upper surface of the guide at least on the near side of the protruding portion. A stopper is formed near the end on the near side of the guide presser in the vicinity of the end on the near side of the guide presser, and a stopper is formed near the end on the nearer side of the guide presser toward the back side. And a notch is formed in the upper space of the stopper that allows the protrusion to move along the drawing direction of the paper feed tray only when the entire bottom surface of the guide is lifted from the guide support. In, in the state in which the upper surface of the projecting portion is opposed to the portion of the guide holding other than the notch can be suppressed by the guide pressing the guide float from the guide support.
Therefore, even when the paper feed tray is tilted and pulled out, it is possible to reliably prevent the paper feed tray from dropping off the guide rail by the contact between the projection and the stopper. In addition, since the upper surface of the guide is provided with a stepped recess on the front side of the protrusion that widens the distance from the guide presser, the guide is lifted in parallel from the guide support while the protrusion contacts the stopper. Only in this case, the projection can be made to protrude from the notch without pressing the guide with the guide retainer, and in this state, the projection can be moved in the pull-out direction in the space above the stopper to be located on the near side of the stopper. Thereby, the sheet feed tray can be easily removed from the guide rail.

【0019】請求項2の発明によれば、ガイドには、突
部を間にして手前側と奥側とに配置された段付凹部が形
成されているので、突部がストッパに当接するまで給紙
トレイを引き出した状態において、給紙トレイの手前側
を不用意に押し下げた場合には、ガイドの底部を支える
ガイド支えの手前側の縁を支点として突部が切欠の上方
に突出する方向に給紙トレイが傾くが、その傾きを突部
から後方に延出する段付凹部の後端縁とガイド押えとの
当接により抑制することができ、これにより、ストッパ
の上方への突部の動きを阻止し、突部とストッパとを当
接させてガイドレールからの給紙ローラの脱落をさらに
効果的に防止することができる。
According to the second aspect of the present invention, the guide is formed with the stepped recesses disposed on the near side and the back side with the protrusion therebetween, so that the guide is in contact with the stopper. If the paper tray is pulled out and the front side of the paper tray is inadvertently depressed, the direction in which the protrusion projects above the notch with the front edge of the guide support that supports the bottom of the guide as the fulcrum The paper feed tray is tilted, but the tilt can be suppressed by the contact between the rear end edge of the stepped recess extending rearward from the protrusion and the guide presser. Of the sheet feeding roller can be prevented from coming off from the guide rail by preventing the movement of the sheet feeding roller from the guide rail.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の一実施の形態における給紙トレイとガ
イドレールとの関係を示す分解斜視図である。
FIG. 1 is an exploded perspective view illustrating a relationship between a sheet feeding tray and a guide rail according to an embodiment of the present invention.

【図2】給紙トレイを引き出し自在に備えた画像形成装
置の一例を示す斜視図である。
FIG. 2 is a perspective view illustrating an example of an image forming apparatus provided with a sheet tray that can be pulled out.

【図3】ガイドとガイドレールとの関係を上方から見た
様子を示す説明図である。
FIG. 3 is an explanatory diagram illustrating a relationship between a guide and a guide rail as viewed from above.

【図4】ガイドとガイドレールとの関係を側面から見た
様子を示す一部の説明図である。
FIG. 4 is a partial explanatory view showing a state in which a relationship between a guide and a guide rail is viewed from a side.

【符号の説明】[Explanation of symbols]

3 給紙トレイ 6 ガイド 7 突部 8,9 段付凹部 10 ガイドレール 11 ガイド支え 12 ガイド押え 14 切欠 15 ストッパ 3 Paper Feed Tray 6 Guide 7 Protrusion 8, 9 Stepped Recess 10 Guide Rail 11 Guide Support 12 Guide Holder 14 Notch 15 Stopper

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 両外側面から突出するガイドが手前側か
ら奥側に向けて形成されているとともに多数枚の用紙を
積層状態で収納する給紙トレイと、 前記ガイドの底面を支えるガイド支えと、前記ガイドの
上面に対向するガイド押えとを有して前記給紙トレイを
引き出し自在に支持する左右一対のガイドレールと、 前記ガイドの奥側の後端付近に形成されて外側方向に突
出する突部と、 前記ガイドの少なくとも前記突部の手前側における上面
に凹状に形成された段付凹部と、 前記ガイド押えの手前側の端部の近傍に形成されて前記
突部に当接することにより前記給紙トレイの引き出し長
さを制限するストッパと、 前記ガイド押えの手前側の端部の近傍から奥側に向けて
所定の長さで切り欠かれ、前記ガイドの全底面を前記ガ
イド支えから浮かせた状態でのみ前記ストッパの上部空
間において前記給紙トレイの引き出し方向に沿う前記突
部の移動を許容する切欠と、を備えることを特徴とする
給紙トレイ装置。
1. A paper feed tray formed with guides projecting from both outer side surfaces from a front side to a back side and storing a large number of sheets in a stacked state, and a guide support for supporting a bottom surface of the guide. A pair of left and right guide rails having a guide presser opposing the upper surface of the guide and supporting the paper feed tray so as to be able to be pulled out; and formed near the rear end on the back side of the guide and protruding outward. A projection, a stepped recess formed in a concave shape on the upper surface of at least the front side of the projection of the guide, and abutting on the projection formed near the end on the front side of the guide presser. A stopper for limiting the drawing length of the paper feed tray, a notch of a predetermined length from near the front end of the guide retainer toward the back, and the entire bottom surface of the guide is supported from the guide support. Floating Paper feed tray device characterized by and a notch to allow movement of the projection along the drawing direction of the paper feed tray only in the upper space of the stopper in a state.
【請求項2】 ガイドには、突部を間にして手前側と奥
側とに配置された段付凹部が形成されていることを特徴
とする請求項1記載の給紙トレイ引出装置。
2. The paper feed tray pull-out device according to claim 1, wherein the guide has stepped concave portions disposed on the front side and the rear side with the protruding portion therebetween.
JP15930396A 1996-06-20 1996-06-20 Paper tray drawer Expired - Fee Related JP3472412B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15930396A JP3472412B2 (en) 1996-06-20 1996-06-20 Paper tray drawer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15930396A JP3472412B2 (en) 1996-06-20 1996-06-20 Paper tray drawer

Publications (2)

Publication Number Publication Date
JPH107270A true JPH107270A (en) 1998-01-13
JP3472412B2 JP3472412B2 (en) 2003-12-02

Family

ID=15690862

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15930396A Expired - Fee Related JP3472412B2 (en) 1996-06-20 1996-06-20 Paper tray drawer

Country Status (1)

Country Link
JP (1) JP3472412B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005338180A (en) * 2004-05-24 2005-12-08 Ricoh Co Ltd Supporting and guiding device and image forming apparatus
JP2006084959A (en) * 2004-09-17 2006-03-30 Ricoh Co Ltd Image forming apparatus
JP2007197161A (en) * 2006-01-26 2007-08-09 Canon Inc Sheet feeding device and image forming device
JP2010190977A (en) * 2009-02-16 2010-09-02 Canon Inc Process cartridge and image forming apparatus
US9696676B2 (en) 2015-02-23 2017-07-04 Brother Kogyo Kabushiki Kaisha Image forming apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005338180A (en) * 2004-05-24 2005-12-08 Ricoh Co Ltd Supporting and guiding device and image forming apparatus
JP2006084959A (en) * 2004-09-17 2006-03-30 Ricoh Co Ltd Image forming apparatus
JP4585821B2 (en) * 2004-09-17 2010-11-24 株式会社リコー Image forming apparatus
JP2007197161A (en) * 2006-01-26 2007-08-09 Canon Inc Sheet feeding device and image forming device
JP2010190977A (en) * 2009-02-16 2010-09-02 Canon Inc Process cartridge and image forming apparatus
US9696676B2 (en) 2015-02-23 2017-07-04 Brother Kogyo Kabushiki Kaisha Image forming apparatus

Also Published As

Publication number Publication date
JP3472412B2 (en) 2003-12-02

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