JP2007331890A - Paper feeding cassette - Google Patents

Paper feeding cassette Download PDF

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Publication number
JP2007331890A
JP2007331890A JP2006165661A JP2006165661A JP2007331890A JP 2007331890 A JP2007331890 A JP 2007331890A JP 2006165661 A JP2006165661 A JP 2006165661A JP 2006165661 A JP2006165661 A JP 2006165661A JP 2007331890 A JP2007331890 A JP 2007331890A
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Japan
Prior art keywords
paper
pressing
flat portion
cassette
flat
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JP2006165661A
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Japanese (ja)
Inventor
Atsushi Mushimoto
篤史 虫本
Takahiro Naito
隆広 内藤
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Funai Electric Co Ltd
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Funai Electric Co Ltd
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Priority to JP2006165661A priority Critical patent/JP2007331890A/en
Priority to US11/797,201 priority patent/US20070290433A1/en
Publication of JP2007331890A publication Critical patent/JP2007331890A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/54—Pressing or holding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
    • B65H1/266—Support fully or partially removable from the handling machine, e.g. cassette, drawer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/54—Springs, e.g. helical or leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/115—Cover

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper feeding cassette capable of suppressing conveying of paper in an oblique direction by suppressing curving (cambering) of the paper in a width direction while suppressing increase of the number of parts and capable of suppressing a pressing member from being removed from the paper feeding cassette even in the state in which a plenty of paper sheets exists. <P>SOLUTION: The paper feeding cassette 10 is provided with a second pressing part 60 for pressing a central part in a width direction of an upper surface of the paper 50. The second pressing member 60 integrally includes a flat part 60a mounted to a lower surface part 13b of a lid member 13; an inclined part 60b integrally joined to the flat part 60a at an area other than an end of a lower surface of the flat part 60a, extending in an oblique direction toward an inner bottom surface 11k of the cassette body 10 and having an elastically deformable joint part 60d with at least the flat part 60a; and a pressing part 60c provided on a distal end portion of the inclined part 60b. When the lid member 13 is arranged on an upper part of the cassette body 10, the pressing part 60c is abutted on the inner bottom surface 11k of the cassette body 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、給紙カセットに関し、特に、画像形成装置に装着される給紙カセットに関する。   The present invention relates to a paper feed cassette, and more particularly, to a paper feed cassette mounted on an image forming apparatus.

従来、画像形成装置に装着される給紙カセットなどが知られている（たとえば、特許文献１〜４参照）。   2. Description of the Related Art Conventionally, a paper feed cassette mounted on an image forming apparatus is known (for example, see Patent Documents 1 to 4).

上記特許文献１には、用紙トレイに収納された用紙の給紙方向と平行な用紙の側面部を押圧して用紙を用紙トレイの片側に寄せる幅寄せ部材（板バネ）と、用紙トレイの上面を覆う回動可能な蓋体とを備え、この蓋体の内側に、用紙の上面の幅方向の両端部近傍を押圧する押圧部材（板バネ）が接合されていると考えられる給紙カセットが開示されている。また、この特許文献１に開示された給紙カセットでは、蓋体の内側に用紙の上面を押圧する押圧部材（板バネ）が、蓋体に取り付けられる平坦部と、蓋体を閉じたときに用紙の上面を押圧する押圧部と、平坦部と押圧部とをつなぐ１つの傾斜部とから構成されている。なお、傾斜部と平坦部との接合部は、平坦部の一方端部に設けられている。   In the above-mentioned patent document 1, a width-adjusting member (plate spring) that presses a side surface of a sheet parallel to the paper feeding direction of the sheet stored in the sheet tray and brings the sheet to one side of the sheet tray, and an upper surface of the sheet tray A paper feed cassette that is considered to have a pressing member (plate spring) that presses the vicinity of both end portions in the width direction of the upper surface of the paper on the inner side of the lid. It is disclosed. Further, in the paper feed cassette disclosed in Patent Document 1, when a pressing member (plate spring) that presses the upper surface of the paper on the inner side of the lid closes the flat portion attached to the lid and the lid. It is comprised from the press part which presses the upper surface of a paper, and one inclination part which connects a flat part and a press part. Note that the joint between the inclined portion and the flat portion is provided at one end of the flat portion.

また、上記特許文献２には、用紙を収納する用紙トレイの端部に用紙の給紙方向とは垂直の方向に設けられた壁部（カール強制部）と、用紙の上面を覆う用紙トレイの幅方向の中央部に切り起こされて、用紙の上面を押圧する押圧部材（板バネ）とを備えた給紙カセットが開示されている。そして、この給紙カセットでは、壁部（カール強制部）が用紙の端部を下方向に押圧することによって、用紙を適切にカール（巻き癖）させて給紙ローラに送り込ませる一方、極度なカール状態を回避するために、適度に用紙の上面を下方向に押さえる押圧部材（板バネ）が設けられた構成となっている。なお、用紙トレイに収納された用紙を装置本体側の給紙ローラに付勢するための押圧板とバネ部材（コイルバネ）とが装置本体側に設けられ、給紙カセットが装置本体に装着された際に、装置本体側の押圧板とバネ部材（コイルバネ）とが、用紙トレイ側の壁部（カール強制部）および押圧部材（板バネ）の両方を押圧するように構成されている。   Further, in Patent Document 2, a wall portion (curl forcing portion) provided at an end portion of a paper tray for storing paper in a direction perpendicular to the paper feeding direction, and a paper tray for covering the upper surface of the paper are disclosed. There is disclosed a paper feed cassette provided with a pressing member (plate spring) that is cut and raised at the center in the width direction and presses the upper surface of the paper. In this paper feed cassette, the wall portion (curl forcing portion) presses the edge of the paper downward, thereby curling the paper appropriately and feeding it to the paper feed roller. In order to avoid the curled state, a pressing member (plate spring) that presses down the upper surface of the paper appropriately is provided. A pressing plate and a spring member (coil spring) for biasing the paper stored in the paper tray to the paper feeding roller on the device main body side are provided on the device main body side, and the paper feeding cassette is mounted on the device main body. In this case, the pressing plate and the spring member (coil spring) on the apparatus main body side are configured to press both the wall portion (curl forcing portion) and the pressing member (plate spring) on the paper tray side.

また、上記特許文献３には、用紙トレイの内側面に、収納された用紙の側面部を押圧して用紙を用紙トレイの片側に寄せる第１押圧部材（板バネ）と、用紙トレイの左右の内側面に一体的に形成されて、用紙の上面を押圧する第２押圧部材（板バネ）とを備えた給紙カセットが開示されている。また、この給紙カセットでは、用紙トレイが装置本体に装着された場合に、収納された用紙を装置本体側の給紙ローラに付勢するための押し上げ板部が上方に回動して、用紙上面の第２押圧部材（板バネ）に用紙が当接するように構成されている。   Further, in Patent Document 3, a first pressing member (plate spring) that presses the side surface portion of the stored paper and brings the paper to one side of the paper tray on the inner side surface of the paper tray, and the left and right sides of the paper tray There is disclosed a paper feed cassette that is formed integrally with an inner surface and includes a second pressing member (plate spring) that presses the upper surface of a sheet. Further, in this paper feed cassette, when the paper tray is mounted on the apparatus main body, the push-up plate for urging the stored paper to the paper feed roller on the apparatus main body side rotates upward, and the paper The sheet is configured to contact the second pressing member (plate spring) on the upper surface.

また、上記特許文献４には、用紙トレイと、用紙トレイの上面を覆う回動可能な蓋体と、この蓋体の内側に用紙の上面の幅方向の中央部と微小面積で接しながら用紙の搬送とともに回転するローラとを備えた給紙カセットが開示されている。また、この給紙カセットでは、用紙トレイに収納された用紙を蓋体に取り付けられたローラに圧接するための押し上げ板部とバネ部材（コイルバネ）とが、用紙トレイの底部に設けられている。   Further, in Patent Document 4, a paper tray, a rotatable lid that covers the top surface of the paper tray, and the inside of this lid body in contact with the central portion in the width direction of the top surface of the paper with a small area, A paper feed cassette having a roller that rotates with conveyance is disclosed. Further, in this paper feed cassette, a push-up plate portion and a spring member (coil spring) for pressing the paper stored in the paper tray against a roller attached to the lid are provided at the bottom of the paper tray.

特開２００２−３３２１２２号公報JP 2002-332122 A 特開２００３−２７６８６３号公報JP 2003-276863 A 特開２００４−８３１７５号公報JP 2004-83175 A 特開平５−２２９６７６号公報JP-A-5-229676

しかしながら、上記特許文献１に記載の給紙カセットでは、用紙の幅方向の端部近傍の上面を押圧する押圧部材（板バネ）が、用紙トレイの左右の内側面に一体的に形成されているため、用紙の幅方向の中央部は押圧されない状態になり、そのため、用紙の幅方向の中央部で湾曲（反り）が発生しやすいという不都合がある。このため、用紙の幅方向の反りをなくそうとするものではないので、用紙の幅方向の反りに起因して用紙が搬送方向に対して斜め方向に搬送されやすいという問題点がある。また、特許文献１では、用紙トレイに収納された用紙の枚数が多い状態で蓋体を閉じた場合、押圧部材（板バネ）は用紙に当接することによって用紙から上方向の荷重を受け、傾斜部がより倒れる方向に曲げられて、形状に変形を起こす。この場合に、押圧部材が接着層により蓋体の内側に接着されている場合には、押圧部材（板バネ）の平坦部の端部と傾斜部との接合部を中心軸として、押圧部材（板バネ）の平坦部と傾斜部との接合部に曲げモーメントが発生するとともに、平坦部は常に蓋体の内側から剥がれようとする方向（下方向）に付勢された状態となる。したがって、用紙の枚数が多い状態で、押圧部材が用紙を押圧した場合には、時間の経過と共に平坦部が蓋体下面から剥がれて外れてしまうという問題点がある。   However, in the paper feed cassette described in Patent Document 1, pressing members (plate springs) that press the upper surface in the vicinity of the end in the width direction of the paper are integrally formed on the left and right inner side surfaces of the paper tray. For this reason, the central portion in the width direction of the paper is not pressed, and therefore, there is a problem in that the central portion in the width direction of the paper is likely to be curved (warped). For this reason, since it is not intended to eliminate the warp in the width direction of the paper, there is a problem that the paper is easily transported in an oblique direction with respect to the transport direction due to the warp in the width direction of the paper. In Patent Document 1, when the lid is closed in a state where the number of sheets stored in the sheet tray is large, the pressing member (plate spring) receives an upward load from the sheet by contacting the sheet, and is inclined. The part is bent more in the direction of falling, causing the shape to deform. In this case, when the pressing member is bonded to the inner side of the lid by the adhesive layer, the pressing member (plate spring) has the pressing member (with the central portion as the center of the joint portion between the end portion of the flat portion and the inclined portion). A bending moment is generated at the joint portion between the flat portion and the inclined portion of the leaf spring), and the flat portion is always urged in a direction (downward) to be peeled from the inside of the lid. Therefore, when the pressing member presses the paper in a state where the number of papers is large, there is a problem that the flat portion is peeled off from the lower surface of the lid body as time passes.

また、上記特許文献２に記載の給紙カセットでは、用紙の上面を押圧する押圧部材（板バネ）は、用紙の幅方向の過剰なカール（反り）を抑制するものであり、用紙の幅方向の反りをなくそうとするものではないので、用紙の幅方向の反りに起因して用紙が搬送方向に対して斜め方向に搬送されやすいという問題点がある。   In the paper feed cassette described in Patent Document 2, the pressing member (plate spring) that presses the upper surface of the sheet suppresses excessive curling (warping) in the width direction of the sheet. However, there is a problem that the sheet is easily conveyed in an oblique direction with respect to the conveying direction due to the warp in the width direction of the sheet.

また、上記特許文献３に記載の給紙カセットでは、用紙の幅方向の端部近傍の上面を押圧する第２押圧部材（板バネ）が、用紙トレイの左右の内側面に一体的に形成されているため、用紙の幅方向の中央部で湾曲（反り）が発生しやすいという不都合がある。このため、用紙の幅方向の反りに起因して用紙が搬送方向に対して斜め方向に搬送されやすいという問題点がある。   Further, in the paper feed cassette described in Patent Document 3, the second pressing members (plate springs) that press the upper surface in the vicinity of the end in the width direction of the paper are integrally formed on the left and right inner side surfaces of the paper tray. Therefore, there is an inconvenience that bending (warping) is likely to occur at the center in the width direction of the sheet. For this reason, there is a problem that the sheet is easily conveyed in an oblique direction with respect to the conveying direction due to the warp in the width direction of the sheet.

また、上記特許文献４に記載の給紙カセットでは、用紙トレイに収納された用紙を蓋体に取り付けられたローラに圧接するための押し上げ板部とバネ部材（コイルバネ）とがローラとは別に必要であるため、部品点数が増加するという問題点がある。   Further, in the paper feed cassette described in Patent Document 4, a push-up plate portion and a spring member (coil spring) for pressing the paper stored in the paper tray against the roller attached to the lid are required separately from the roller. Therefore, there is a problem that the number of parts increases.

この発明は、上記のような課題を解決するためになされたものであり、この発明の１つの目的は、部品点数の増加を抑制しながら、用紙の幅方向の湾曲（反り）を抑制して用紙の斜め方向への搬送を抑制することが可能で、かつ、用紙の枚数が多い状態でも用紙を押圧する押圧部材が給紙カセットから外れるのを抑制することが可能な給紙カセットを提供することである。   The present invention has been made to solve the above-described problems, and one object of the present invention is to suppress the bending (warping) of the paper in the width direction while suppressing an increase in the number of parts. Provided is a paper feed cassette capable of suppressing the conveyance of paper in an oblique direction and capable of suppressing a pressing member that presses the paper from being removed from the paper feed cassette even when the number of sheets is large. That is.

課題を解決するための手段および発明の効果Means for Solving the Problems and Effects of the Invention

この発明の第１の局面による給紙カセットは、給紙ローラを含む画像形成装置に装着されるとともに、用紙が収納されるカセット本体と、カセット本体の上部に配置された蓋部材と、用紙を収納した際に、カセット本体の内側の少なくとも一方側面部に設けられ、用紙側面を押圧する第１押圧部材とを備えた給紙カセットにおいて、蓋部材とは別体で設けられるとともに、蓋部材の下面に取り付けられ、カセット本体に収納された用紙の上面の幅方向の中央部近傍を押圧する第２押圧部材とをさらに備え、第２押圧部材は、蓋部材の下面に取り付けられる平坦部と、平坦部の下面のうちの端部以外の領域で平坦部と一体的に接合され、カセット本体の内底面に向かって斜め方向に延びるとともに、少なくとも平坦部との接合部分が弾性変形可能な傾斜部と、傾斜部の先端部分に設けられた押圧部とを一体的に含み、蓋部材をカセット本体の上部に配置した際に、押圧部がカセット本体の内底面に当接され、押圧部は、断面形状が実質的にＬ字形状を有するとともに、Ｌ字形状の角部で用紙を線上に押圧するように構成され、第２押圧部材の平坦部は、接着層によって蓋部材の下面に取り付けられ、傾斜部は、平坦部の実質的に中央部に接合される。   A sheet feeding cassette according to a first aspect of the present invention is mounted on an image forming apparatus including a sheet feeding roller, and includes a cassette body in which sheets are stored, a lid member disposed on the upper portion of the cassette body, and sheets. In the paper feed cassette provided with the first pressing member that is provided on at least one side surface inside the cassette main body and presses the paper side surface when stored, the paper feeding cassette is provided separately from the lid member, A second pressing member that is attached to the lower surface and presses the vicinity of the central portion in the width direction of the upper surface of the sheet stored in the cassette body, the second pressing member is a flat portion that is attached to the lower surface of the lid member; The flat portion is integrally joined to the flat portion in the region other than the end portion of the flat portion, extends obliquely toward the inner bottom surface of the cassette body, and at least the joint portion with the flat portion is elastically deformable. When the lid member is disposed on the upper part of the cassette body, the pressing part is brought into contact with the inner bottom surface of the cassette body and pressed. The section has a substantially L-shaped cross section, and is configured to press the sheet onto the line with the L-shaped corner, and the flat portion of the second pressing member is formed on the lower surface of the lid member by the adhesive layer. And the inclined portion is joined to the substantially central portion of the flat portion.

この第１の局面による給紙カセットでは、上記のように、第２押圧部材を、蓋部材の下面に取り付けられる平坦部の下面のうちの端部以外の領域で平坦部と一体的に接合され、カセット本体の内底面に向かって斜め方向に延びるとともに、少なくとも平坦部との接合部分が弾性変形可能な傾斜部を一体的に含むように構成することによって、用紙の枚数が多い状態で、第２押圧部材が用紙を押圧した際に、用紙からの反力により第２押圧部材の傾斜部と平坦部との接合部を中心軸として曲げモーメントが発生する場合に、傾斜部と平坦部とのなす角度がとなる平坦部の領域は、上記曲げモーメントを打ち消す方向の反力を発生させることができる。これにより、用紙の枚数が多い状態でも、平坦部が蓋部材の下面から剥がれて外れてしまうことを抑制することができる。また、第２押圧部材を、カセット本体に収納された用紙の上面の幅方向の中央部近傍を押圧するように構成することによって、第２押圧部材は、用紙の上面の幅方向の中央部を押圧することができるため、用紙の幅方向の湾曲（反り）を有効に抑制することができる。これにより、用紙の幅方向の反りに起因する用紙の斜め方向への搬送を抑制することできる。また、第２押圧部材を、蓋部材の下面に取り付けられる平坦部と、平坦部の下面のうちの端部以外の領域で平坦部と一体的に接合される傾斜部と、傾斜部の先端部分に設けられた押圧部とを一体的に含むように構成するとともに、蓋部材をカセット本体の上部に配置した際に、押圧部がカセット本体の内底面に当接されるように構成することによって、用紙の下方に用紙の上面を押圧部に当接させるための押し上げ機構を設ける必要がないので部品点数の増加を抑制することができる。   In the sheet feeding cassette according to the first aspect, as described above, the second pressing member is integrally joined to the flat portion in a region other than the end portion of the lower surface of the flat portion attached to the lower surface of the lid member. In the state where the number of sheets is large, the tape body extends in an oblique direction toward the inner bottom surface of the cassette body, and at least the joint portion with the flat portion integrally includes an inclined portion that can be elastically deformed. 2 When the pressing member presses the paper, when a bending moment is generated about the joint between the inclined portion and the flat portion of the second pressing member due to the reaction force from the paper, the inclination portion and the flat portion The region of the flat portion where the formed angle can generate a reaction force in a direction to cancel the bending moment. Thereby, even when the number of sheets is large, the flat portion can be prevented from being peeled off from the lower surface of the lid member. Further, by configuring the second pressing member so as to press the vicinity of the central portion in the width direction of the upper surface of the paper stored in the cassette main body, the second pressing member allows the central portion in the width direction of the upper surface of the paper to be Since it can be pressed, it is possible to effectively suppress bending (warping) in the width direction of the paper. Thereby, the conveyance of the sheet in the oblique direction due to the warp in the width direction of the sheet can be suppressed. Further, the second pressing member includes a flat portion attached to the lower surface of the lid member, an inclined portion integrally joined to the flat portion in a region other than the end portion of the lower surface of the flat portion, and a tip portion of the inclined portion And a pressing portion provided on the cassette body, and when the lid member is disposed on the upper portion of the cassette body, the pressing portion is configured to come into contact with the inner bottom surface of the cassette body. Since it is not necessary to provide a push-up mechanism for bringing the upper surface of the paper into contact with the pressing portion below the paper, an increase in the number of parts can be suppressed.

また、第１の局面による給紙カセットでは、押圧部を、断面形状が実質的にＬ字形状を有するとともに、Ｌ字形状の角部で用紙を線状に押圧するように構成することによって、用紙と押圧部との接触面積を小さくすることができるので、用紙と押圧部との摩擦抵抗を小さくすることができる。このため、給紙時の用紙と押圧部との摩擦抵抗に起因する搬送不良の発生が抑制されるので、スムーズな給紙を行うことができる。また、第２押圧部材の平坦部を、接着層によって蓋部材の下面に取り付けることによって、容易に第２押圧部材を蓋部材に取り付けることができる。また、傾斜部を、平坦部の実質的に中央部に接合することによって、第２押圧部材による用紙の押圧時の曲げモーメントを打ち消す方向の反力を発生させる領域の面積を大きくすることができるので、平坦部が蓋部材の下面から剥がれて外れてしまうことをより確実に抑制することができる。   In the paper feed cassette according to the first aspect, the pressing portion has a substantially L-shaped cross section and is configured to press the sheet linearly at the corners of the L shape. Since the contact area between the paper and the pressing portion can be reduced, the frictional resistance between the paper and the pressing portion can be reduced. For this reason, since the occurrence of conveyance failure due to the frictional resistance between the paper and the pressing portion during paper feeding is suppressed, smooth paper feeding can be performed. Moreover, a 2nd press member can be easily attached to a cover member by attaching the flat part of a 2nd press member to the lower surface of a cover member by an adhesive layer. Further, by joining the inclined portion to the substantially central portion of the flat portion, the area of the region that generates the reaction force in the direction to cancel the bending moment when the sheet is pressed by the second pressing member can be increased. Therefore, it can suppress more reliably that a flat part peels off from the lower surface of a cover member, and removes.

この発明の第２の局面による給紙カセットは、給紙ローラを含む画像形成装置に装着されるとともに、用紙が収納されるカセット本体と、カセット本体の上部に配置された蓋部材と、用紙を収納した際に、カセット本体の内側の少なくとも一方側面部に設けられ、用紙側面を押圧する第１押圧部材とを備えた給紙カセットにおいて、蓋部材とは別体で設けられるとともに、蓋部材の下面に取り付けられ、カセット本体に収納された用紙の上面の幅方向の中央部近傍を押圧する第２押圧部材とをさらに備え、第２押圧部材は、蓋部材の下面に取り付けられる平坦部と、平坦部の下面のうちの端部以外の領域で平坦部と一体的に接合され、カセット本体の内底面に向かって斜め方向に延びるとともに、少なくとも平坦部との接合部分が弾性変形可能な傾斜部と、傾斜部の先端部分に設けられた押圧部とを一体的に含み、蓋部材をカセット本体の上部に配置した際に、押圧部がカセット本体の内底面に当接される。   A paper feed cassette according to a second aspect of the present invention is mounted on an image forming apparatus including a paper feed roller, and includes a cassette main body in which paper is stored, a lid member disposed on the upper portion of the cassette main body, and paper. In the paper feed cassette provided with the first pressing member that is provided on at least one side surface inside the cassette main body and presses the paper side surface when stored, the paper feeding cassette is provided separately from the lid member, A second pressing member that is attached to the lower surface and presses the vicinity of the central portion in the width direction of the upper surface of the sheet stored in the cassette body, the second pressing member is a flat portion that is attached to the lower surface of the lid member; The flat portion is integrally joined to the flat portion in the region other than the end portion of the flat portion, extends obliquely toward the inner bottom surface of the cassette body, and at least the joint portion with the flat portion is elastically deformable. And Do inclined portion, integrally includes a pressing portion provided at a distal end portion of the inclined portion, when placing the lid member on top of the cassette body, the pressing portion is brought into contact with the inner bottom surface of the cassette body.

この第２の局面による給紙カセットでは、上記のように、第２押圧部材を、蓋部材の下面に取り付けられる平坦部の下面のうちの端部以外の領域で平坦部と一体的に接合され、カセット本体の内底面に向かって斜め方向に延びるとともに、少なくとも平坦部との接合部分が弾性変形可能な傾斜部を一体的に含むように構成することによって、用紙の枚数が多い状態で、第２押圧部材が用紙を押圧した際に、用紙からの反力により第２押圧部材の傾斜部と平坦部との接合部を中心軸として曲げモーメントが発生する場合に、傾斜部と平坦部とのなす角度が鋭角になる平坦部の領域は、上記曲げモーメントを打ち消す方向の反力を発生させることができる。これにより、用紙の枚数が多い状態でも、平坦部が蓋部材の下面から剥がれて外れてしまうことを抑制することができる。また、第２押圧部材を、カセット本体に収納された用紙の上面の幅方向の中央部近傍を押圧するように構成することによって、第２押圧部材は、用紙の上面の幅方向の中央部を押圧することができるため、用紙の幅方向の湾曲（反り）を有効に抑制することができる。これにより、用紙の幅方向の反りに起因する用紙の斜め方向への搬送を抑制することできる。また、第２押圧部材を、蓋部材の下面に取り付けられる平坦部と、平坦部の下面のうちの端部以外の領域で平坦部と一体的に接合される傾斜部と、傾斜部の先端部分に設けられた押圧部とを一体的に含むように構成するとともに、蓋部材をカセット本体の上部に配置した際に、押圧部がカセット本体の内底面に当接されるように構成することによって、用紙の下方に用紙の上面を押圧部に当接させるための押し上げ機構を設ける必要がないので、部品点数の増加を抑制することができる。   In the paper feed cassette according to the second aspect, as described above, the second pressing member is integrally joined to the flat portion in a region other than the end portion of the lower surface of the flat portion attached to the lower surface of the lid member. In the state where the number of sheets is large, the tape body extends in an oblique direction toward the inner bottom surface of the cassette body, and at least the joint portion with the flat portion integrally includes an inclined portion that can be elastically deformed. 2 When the pressing member presses the paper, when a bending moment is generated about the joint between the inclined portion and the flat portion of the second pressing member due to the reaction force from the paper, the inclination portion and the flat portion The region of the flat portion where the angle formed is an acute angle can generate a reaction force in a direction that cancels the bending moment. Thereby, even when the number of sheets is large, the flat portion can be prevented from being peeled off from the lower surface of the lid member. Further, by configuring the second pressing member so as to press the vicinity of the central portion in the width direction of the upper surface of the paper stored in the cassette main body, the second pressing member allows the central portion in the width direction of the upper surface of the paper to be Since it can be pressed, it is possible to effectively suppress bending (warping) in the width direction of the paper. Thereby, the conveyance of the sheet in the oblique direction due to the warp in the width direction of the sheet can be suppressed. Further, the second pressing member includes a flat portion attached to the lower surface of the lid member, an inclined portion integrally joined to the flat portion in a region other than the end portion of the lower surface of the flat portion, and a tip portion of the inclined portion And a pressing portion provided on the cassette body, and when the lid member is disposed on the upper portion of the cassette body, the pressing portion is configured to come into contact with the inner bottom surface of the cassette body. Since there is no need to provide a push-up mechanism for bringing the upper surface of the paper into contact with the pressing portion below the paper, an increase in the number of parts can be suppressed.

上記第２の局面による給紙カセットにおいて、好ましくは、押圧部は、断面形状が実質的にＬ字形状を有するとともに、Ｌ字形状の角部で用紙を線状に押圧するように構成される。このように構成すれば、用紙と押圧部との接触面積を小さくすることができるので、用紙と押圧部との摩擦抵抗を小さくすることができる。このため、給紙時の用紙と押圧部との摩擦抵抗に起因する搬送不良の発生が抑制されるので、スムーズな給紙を行うことができる。   In the sheet feeding cassette according to the second aspect, preferably, the pressing portion has a substantially L-shaped cross-section and is configured to press the sheet linearly at corner portions of the L-shape. . If comprised in this way, since the contact area of a paper and a press part can be made small, the frictional resistance of a paper and a press part can be made small. For this reason, since the occurrence of conveyance failure due to the frictional resistance between the paper and the pressing portion during paper feeding is suppressed, smooth paper feeding can be performed.

この場合、好ましくは、第２押圧部材の平坦部は、接着層によって蓋部材の下面に取り付けられる。このように構成すれば、容易に第２押圧部材を蓋部材に取り付けることができる。   In this case, preferably, the flat portion of the second pressing member is attached to the lower surface of the lid member by an adhesive layer. If comprised in this way, a 2nd press member can be easily attached to a cover member.

上記第２の局面による給紙カセットにおいて、好ましくは、傾斜部は、平坦部の実質的に中央部に接合されている。このように構成すれば、第２押圧部材による用紙の押圧時の曲げモーメントを打ち消す方向の反力を発生させる領域の面積を大きくすることができるので、平坦部が蓋部材の下面から剥がれて外れてしまうことをより確実に抑制することができる。   In the sheet feeding cassette according to the second aspect, preferably, the inclined portion is joined to a substantially central portion of the flat portion. With this configuration, the area of the region that generates a reaction force in a direction that cancels the bending moment when the sheet is pressed by the second pressing member can be increased, so that the flat portion is peeled off from the lower surface of the lid member. It can suppress more reliably.

上記第２の局面による給紙カセットにおいて、好ましくは、第２押圧部材の平坦部は、傾斜部との接合線を境界線として左右にそれぞれ、第１平坦部と第２平坦部とを含み、第２平坦部は、第１平坦部と傾斜部との接合部の所定領域に、Ｕ字状の切り込み部を設け、第１平坦部のＵ字状の切り込み部の内側の領域を、接合部の接合線に沿って折り返すことにより形成されている。このように構成すれば、容易に、平坦部の下面のうちの端部以外の領域に傾斜部が一体的に接合された構造を得ることができる。   In the sheet feeding cassette according to the second aspect, preferably, the flat portion of the second pressing member includes a first flat portion and a second flat portion on the left and right, respectively, with a joint line with the inclined portion as a boundary line, The second flat portion is provided with a U-shaped cut portion in a predetermined region of the joint portion between the first flat portion and the inclined portion, and an inner region of the U-shaped cut portion of the first flat portion is connected to the joint portion. It is formed by folding back along the joining line. If comprised in this way, the structure by which the inclination part was integrally joined to area | regions other than the edge part among the lower surfaces of a flat part can be obtained easily.

この場合、好ましくは、第２押圧部材は、第１平坦部の端部で第１平坦部と一体的に連結され、傾斜部に向かって斜め方向に延びるとともに、傾斜部を支持するための支持部を含む。このように構成すれば、第２押圧部材の傾斜部が、支持部によって支持されるため、傾斜部の剛性が向上される。このため、特に用紙の枚数が多い状態で、第２押圧部材が用紙を押圧した場合の、傾斜部と第１平坦部との接合部における傾斜部の変位（変形量）をより小さくすることができるので、傾斜部の基本形状を容易に保持することができる。   In this case, preferably, the second pressing member is integrally connected to the first flat portion at an end portion of the first flat portion, extends in an oblique direction toward the inclined portion, and supports for supporting the inclined portion. Part. If comprised in this way, since the inclination part of a 2nd press member is supported by a support part, the rigidity of an inclination part is improved. Therefore, the displacement (deformation amount) of the inclined portion at the joint portion between the inclined portion and the first flat portion when the second pressing member presses the sheet, particularly when the number of sheets is large, can be further reduced. As a result, the basic shape of the inclined portion can be easily retained.

以下、本発明を具体化した実施形態を図面に基づいて説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.

（第１実施形態）
図１および図２は、本発明の第１実施形態による給紙カセットおよび給紙カセットが装着される昇華型プリンタの全体構成を示した斜視図である。図３〜図５は、本発明の第１実施形態による給紙カセットおよび昇華型プリンタの構造を示した図である。図６〜図１０は、本発明の第１実施形態による給紙カセットの構造の詳細を示した図である。まず、図１〜図１０を参照して、本発明の第１実施形態による給紙カセットの構造について説明する。なお、本実施形態では、画像形成装置の一例である昇華型プリンタの給紙カセットに本発明を適用した場合について説明する。 (First embodiment)
1 and 2 are perspective views showing the overall configuration of a paper feed cassette and a sublimation printer to which the paper feed cassette is mounted according to the first embodiment of the present invention. 3 to 5 are views showing the structure of the paper feed cassette and the sublimation printer according to the first embodiment of the present invention. 6 to 10 are diagrams showing details of the structure of the paper feed cassette according to the first embodiment of the present invention. First, the structure of the paper feed cassette according to the first embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a case where the present invention is applied to a paper feed cassette of a sublimation printer that is an example of an image forming apparatus will be described.

本発明の第１実施形態による給紙カセット１０は、図２に示すように、昇華型プリンタ２０に脱着可能に装着することが可能なように構成されている。   As shown in FIG. 2, the paper feed cassette 10 according to the first embodiment of the present invention is configured to be detachably attached to the sublimation printer 20.

給紙カセット１０は、図１および図２に示すように、樹脂製のカセット本体１１と、樹脂製の持ち上げ部材１２と、樹脂製の蓋部材１３とを備えている。また、樹脂製の蓋部材１３は、図２に示すように、用紙５０に埃などが付着するのを抑制するために設けられているとともに、カセット本体１１に対してスライド可能に取り付けられる。また、図３〜図７に示すように、カセット本体１１は、持ち上げ部材１２が回動可能に係合する一対の係合部１１ａ（図５参照）と、後述する一対の用紙分離壁２２ｂを逃がすための一対の切欠部１１ｂと、後述する押上げ部材２５を逃がすための切欠部１１ｃと、給紙カセット１０の装着時に昇華型プリンタ２０と係合する弾性変形可能な一対の取付部１１ｄと、用紙５０（図２参照）のＢ方向（図３参照）の位置を揃えるための３つの凸部１１ｅと、凸部１１ｅに用紙５０（図２参照）を付勢するための第１押圧部材１１ｆと、蓋部材１３をカセット本体１１に対してスライド可能にガイドするガイド部１１ｇと、用紙５０（図２参照）を支持するための給紙方向（図３の矢印Ａ方向）に延びる３つのリブ１１ｈとを有する。   As shown in FIGS. 1 and 2, the paper feed cassette 10 includes a resin cassette body 11, a resin lifting member 12, and a resin lid member 13. Further, as shown in FIG. 2, the resin lid member 13 is provided to prevent dust and the like from adhering to the paper 50 and is slidably attached to the cassette body 11. 3 to 7, the cassette body 11 includes a pair of engaging portions 11a (see FIG. 5) with which the lifting member 12 is rotatably engaged, and a pair of sheet separating walls 22b described later. A pair of notches 11b for escaping, a notch 11c for escaping a push-up member 25 described later, and a pair of elastically deformable attachments 11d that engage with the sublimation printer 20 when the paper feed cassette 10 is mounted Three convex portions 11e for aligning the position of the paper 50 (see FIG. 2) in the B direction (see FIG. 3), and a first pressing member for biasing the paper 50 (see FIG. 2) to the convex portion 11e 11f, a guide portion 11g for slidably guiding the lid member 13 relative to the cassette body 11, and three pieces extending in the paper feeding direction (the direction of arrow A in FIG. 3) for supporting the paper 50 (see FIG. 2). Rib 11h.

また、図６に示すように、一対の取付部１１ｄは、給紙カセット１０のカセット本体１１の外側側面から突出する外側突出部分を有するように給紙カセット１０のカセット本体１１に一体的に設けられている。この取付部１１ｄは、給紙カセット１０を昇華型プリンタ２０に装着する際に後述する昇華型プリンタ２０の取付部装着部２２ｃと係合することにより、給紙カセット１０を昇華型プリンタ２０に対して固定する機能を有する。また、３つのリブ１１ｈは、給紙時に用紙５０（図２参照）が搬送される際のガイドとしての機能を有し、カセット本体１１の後端からカセット本体１１の一対の係合部１１ａの近傍まで伸びるように形成されている。   Further, as shown in FIG. 6, the pair of attachment portions 11 d are provided integrally with the cassette body 11 of the paper feed cassette 10 so as to have an outer protruding portion that protrudes from the outer side surface of the cassette body 11 of the paper feed cassette 10. It has been. The mounting portion 11d engages with a mounting portion mounting portion 22c of the sublimation printer 20 (to be described later) when the paper feeding cassette 10 is mounted on the sublimation printer 20, so that the paper feeding cassette 10 is attached to the sublimation printer 20. And has the function of fixing. Further, the three ribs 11h have a function as a guide when the paper 50 (see FIG. 2) is conveyed at the time of paper feeding, and the pair of engaging portions 11a of the cassette main body 11 from the rear end of the cassette main body 11. It is formed to extend to the vicinity.

また、第１実施形態では、図１および図３〜図７に示すように、カセット本体１１の底部には、それぞれ、持ち上げ部材１２の係合部１２ａが挿入される挿入穴１１ｉと、挿入穴１１ｉに隣接するようにカセット本体１１に一体的に設けられた板バネ部１１ｊとを有する。持ち上げ部材１２は、板バネ部１１ｊの撓みを利用することにより挿入穴１１ｉを介してカセット本体１１の係合部１１ａと係合するように構成されている。また、持ち上げ部材１２は、図１および図３〜図７に示すように、カセット本体１１の一対の係合部１１ａに係合する一対の係合部１２ａと、給紙カセット１０を昇華型プリンタ２０に装着した時に一対の用紙分離壁２２ｂを逃がすための一対の切欠部１２ｂとを有する。   In the first embodiment, as shown in FIGS. 1 and 3 to 7, the bottom of the cassette body 11 has an insertion hole 11 i into which the engaging portion 12 a of the lifting member 12 is inserted, and an insertion hole, respectively. And a leaf spring portion 11j provided integrally with the cassette body 11 so as to be adjacent to 11i. The lifting member 12 is configured to engage with the engaging portion 11a of the cassette body 11 through the insertion hole 11i by utilizing the bending of the leaf spring portion 11j. Further, as shown in FIGS. 1 and 3 to 7, the lifting member 12 includes a pair of engaging portions 12 a that engage with the pair of engaging portions 11 a of the cassette body 11, and a paper feed cassette 10 that is a sublimation printer. And a pair of notches 12b for allowing the pair of sheet separation walls 22b to escape.

また、図１および図７に示すように、蓋部材１３は、カセット本体１１に装着するときにカセット本体１１の取付部１１ｄと係合する取付部係合部１３ａを有する。給紙カセット１０が昇華型プリンタ２０に装着されていないときには、蓋部材１３の取付部係合部１３ａは、カセット本体１１の取付部１１ｄと係合している。一方、図４に示すように、給紙カセット１０が昇華型プリンタ２０に装着する際には、ユーザーは、蓋部材１３の取付部係合部１３ａをカセット本体１１の取付部１１ｄから外す。そして、蓋部材１３を、カセット本体１１のガイド部１１ｇに沿ってカセット本体１１に対して給紙方向（Ａ方向）と反対方向にスライドさせた状態で給紙カセット１０を昇華型プリンタ２０に装着する。これにより、給紙カセット１０は、蓋部材１３が給紙動作に影響を及ぼすことがないように構成されている。   As shown in FIGS. 1 and 7, the lid member 13 has an attachment portion engaging portion 13 a that engages with the attachment portion 11 d of the cassette body 11 when being attached to the cassette body 11. When the paper feed cassette 10 is not attached to the sublimation type printer 20, the attachment portion engaging portion 13 a of the lid member 13 is engaged with the attachment portion 11 d of the cassette body 11. On the other hand, as shown in FIG. 4, when the paper feed cassette 10 is attached to the sublimation printer 20, the user removes the attachment portion engaging portion 13 a of the lid member 13 from the attachment portion 11 d of the cassette body 11. Then, the paper feed cassette 10 is mounted on the sublimation printer 20 with the lid member 13 slid along the guide portion 11g of the cassette main body 11 in the direction opposite to the paper feed direction (A direction). To do. Thereby, the paper feed cassette 10 is configured such that the lid member 13 does not affect the paper feed operation.

ここで、第１実施形態では、図７に示すように、蓋部材１３の下面部１３ｂに用紙５０の上面を押圧する樹脂製の第２押圧部材６０が蓋材部１３とは別体で設けられている。この第２押圧部材６０は、図８に示すように、平坦部６０ａと、弾性変形可能な傾斜部６０ｂと、押圧部６０ｃとを一体的に含む。傾斜部６０ｂは、平坦部６０ａの下面の実質的に中央部において平坦部６０ａと一体的に接合され、カセット本体１０（図７参照）の内底面１１ｋ（図７参照）に向かって斜め方向に延びるとともに、押圧部６０ｃは、傾斜部６０ｂの先端部分に設けられている。なお、平坦部６０ａは、接合部６０ｄを境界として、傾斜部６０ｂと平坦部６０ａとのなす角度が鈍角になる一方領域６０ｅと、傾斜部６０ｂと平坦部６０ａとのなす角度が鋭角になる他方領域６０ｆとを含むように構成されている。また、接合部６０ｄは、他の部分よりも厚みが大きい肉厚構造を有する。これにより、傾斜部６０ｂの倒れを低減可能である。また、図９に示すように、蓋部材１３をカセット本体１１に取り付けた際は、第２押圧部材６０の押圧部６０ｃがカセット本体１１の内底面１１ｋのリブ１１ｈに近接されるように構成されている。   Here, in the first embodiment, as shown in FIG. 7, a resin-made second pressing member 60 that presses the upper surface of the paper 50 against the lower surface portion 13 b of the lid member 13 is provided separately from the lid material portion 13. It has been. As shown in FIG. 8, the second pressing member 60 integrally includes a flat portion 60a, an elastically deformable inclined portion 60b, and a pressing portion 60c. The inclined portion 60b is integrally joined to the flat portion 60a at a substantially central portion of the lower surface of the flat portion 60a, and is inclined toward the inner bottom surface 11k (see FIG. 7) of the cassette body 10 (see FIG. 7). While extending, the pressing portion 60c is provided at the tip portion of the inclined portion 60b. The flat portion 60a has the junction 60d as a boundary, the one region 60e having an obtuse angle between the inclined portion 60b and the flat portion 60a, and the other having an acute angle between the inclined portion 60b and the flat portion 60a. The region 60f is included. Moreover, the joining portion 60d has a thick structure that is thicker than other portions. Thereby, the fall of the inclined part 60b can be reduced. Further, as shown in FIG. 9, when the lid member 13 is attached to the cassette body 11, the pressing portion 60 c of the second pressing member 60 is configured to be close to the rib 11 h of the inner bottom surface 11 k of the cassette body 11. ing.

また、第１実施形態では、図９に示すように、第２押圧部材６０の押圧部６０ｃは、断面形状がＬ字形状を有する。この第２押圧部材６０は、蓋部材１３の下面部１３ｂに、粘着テープ１４（両面テープ）によって取り付けられている。なお、粘着テープ１４は、本発明の「接着層」の一例である。さらに、図１０に示すように、第２押圧部材６０の押圧部６０ｃは、カセット本体１１の用紙５０（図２参照）の幅方向の中央部で、かつ、カセット本体１１の第１押圧部材１１ｆが用紙５０（図２参照）を側面から押圧する作用線１００上（一点鎖線）に設けられている。   Moreover, in 1st Embodiment, as shown in FIG. 9, the cross-sectional shape of the press part 60c of the 2nd press member 60 has L-shape. The second pressing member 60 is attached to the lower surface portion 13b of the lid member 13 with an adhesive tape 14 (double-sided tape). The adhesive tape 14 is an example of the “adhesive layer” in the present invention. Further, as shown in FIG. 10, the pressing portion 60 c of the second pressing member 60 is a central portion in the width direction of the paper 50 (see FIG. 2) of the cassette body 11 and the first pressing member 11 f of the cassette body 11. Is provided on a line of action 100 (one-dot chain line) for pressing the sheet 50 (see FIG. 2) from the side.

また、昇華型プリンタ２０は、図３および図４に示すように、金属製のシャーシ２１と、給紙カセット装着部２２と、用紙５０（図２参照）を昇華型プリンタ２０の内部へ搬送するためのゴム製の給紙ローラ２３と、給紙ローラギア２４と、用紙５０（図２参照）が積層された持ち上げ部材１２を上方に押し上げて、用紙５０（図２参照）を給紙ローラ２３に押圧させる押上げ部材２５と、給紙カセット１０が昇華型プリンタ２０に装着されたことを検知するセンサ部２６と、給紙ローラ２３などを駆動するためのステッピングモータ２７と、用紙５０（図２参照）に画像を印字するための印字ヘッド２８と、印字ヘッド２８を押圧する図示しない印字ヘッド押圧部材および押上げ部材２５を駆動するためのステッピングモータ２９と、ステッピングモータ２７およびステッピングモータ２９を取り付けるためのモータブラケット３０と、インクシート（図示せず）を巻き取るための巻取リール３１と、揺動可能な揺動ギア３２と、給紙ローラギア２４にステッピングモータ２７の駆動力を伝えるための複数の中間ギア３３と、ゴム製の排紙ローラ３４と、排紙ローラギア３５とを有する。   Further, as shown in FIGS. 3 and 4, the sublimation printer 20 conveys a metal chassis 21, a paper feed cassette mounting unit 22, and paper 50 (see FIG. 2) into the sublimation printer 20. The sheet feeding roller 23 for rubber, the sheet feeding roller gear 24, and the lifting member 12 on which the sheet 50 (see FIG. 2) is stacked are pushed upward to transfer the sheet 50 (see FIG. 2) to the sheet feeding roller 23. A push-up member 25 to be pressed, a sensor unit 26 for detecting that the paper feed cassette 10 is mounted on the sublimation printer 20, a stepping motor 27 for driving the paper feed roller 23 and the like, and paper 50 (FIG. 2). A printing head 28 for printing an image, a stepping motor 29 for driving a printing head pressing member (not shown) and a lifting member 25 for pressing the printing head 28, and a stepping motor 29. Stepping the motor bracket 30 for attaching the ping motor 27 and the stepping motor 29, the take-up reel 31 for taking up the ink sheet (not shown), the swingable swing gear 32, and the paper feed roller gear 24. A plurality of intermediate gears 33 for transmitting the driving force of the motor 27, a rubber discharge roller 34, and a discharge roller gear 35 are provided.

また、昇華型プリンタ２０は、図３および図４に示すように、インクシート（図示せず）が内蔵されたインクシートカートリッジ９０が着脱可能に装着される。   As shown in FIGS. 3 and 4, the sublimation printer 20 is detachably mounted with an ink sheet cartridge 90 containing an ink sheet (not shown).

また、シャーシ２１は、図３および図４に示すように、モータブラケット３０が取り付けられる一方側面２１ａと、他方側面２１ｂと、一方側面２１ａと他方側面２１ｂとを連結する底面２１ｃとを有する。また、シャーシ２１の他方側面２１ｂには、インクシート（図示せず）が内蔵されたインクシートカートリッジ９０を取り付けるためのインクシートカートリッジ挿入孔２１ｄが設けられている。   As shown in FIGS. 3 and 4, the chassis 21 has one side surface 21 a to which the motor bracket 30 is attached, the other side surface 21 b, and a bottom surface 21 c that connects the one side surface 21 a and the other side surface 21 b. Further, an ink sheet cartridge insertion hole 21d for attaching an ink sheet cartridge 90 containing an ink sheet (not shown) is provided on the other side surface 21b of the chassis 21.

また、図３に示すように、給紙カセット装着部２２は、給紙カセット１０を昇華型プリンタ２０に装着するときの一対のガイド部２２ａと、用紙５０（図２参照）の二重送りを防止するための一対の用紙分離壁２２ｂと、給紙カセット１０を昇華型プリンタ２０に装着したときにカセット本体１１の一対の取付部１１ｄと係合する一対の取付部装着部２２ｃとを有する。また、図２に示すように、給紙カセット１０を昇華型プリンタ２０に装着した時には、図４に示すように、カセット本体１１の一対の切欠部１１ｂおよび持ち上げ部材１２の一対の切欠部１２ｂには、一対の用紙分離壁２２ｂが位置する。また、図４および図５に示すように、給紙カセット１０を昇華型プリンタ２０に装着した時には、持ち上げ部材１２の上方には、給紙ローラ２３が位置し、持ち上げ部材１２の下方には、押上げ部材２５が位置する。また、給紙ローラ２３は、回転することにより、押上げ部材２５によって押し上げられた用紙５０（図２参照）を昇華型プリンタ２０の内部に搬送する機能を有する。また、給紙ローラ２３の一方端には、給紙ローラギア２４が取り付けられており、給紙ローラギア２４の回転に伴い給紙ローラ２３も回転するように構成されている。   Further, as shown in FIG. 3, the paper feed cassette mounting section 22 performs a double feed of the pair of guide sections 22a and the paper 50 (see FIG. 2) when mounting the paper feed cassette 10 to the sublimation printer 20. A pair of sheet separation walls 22b for preventing the paper and a pair of attachment portion mounting portions 22c that engage with the pair of attachment portions 11d of the cassette body 11 when the paper feed cassette 10 is attached to the sublimation printer 20 are provided. As shown in FIG. 2, when the paper feed cassette 10 is mounted on the sublimation printer 20, the pair of notches 11b of the cassette main body 11 and the pair of notches 12b of the lifting member 12 are shown in FIG. The pair of sheet separation walls 22b is located. As shown in FIGS. 4 and 5, when the paper feed cassette 10 is attached to the sublimation printer 20, the paper feed roller 23 is positioned above the lifting member 12, and below the lifting member 12, The push-up member 25 is located. In addition, the paper feed roller 23 has a function of conveying the paper 50 (see FIG. 2) pushed up by the push-up member 25 into the sublimation printer 20 by rotating. A paper feed roller gear 24 is attached to one end of the paper feed roller 23, and the paper feed roller 23 is configured to rotate as the paper feed roller gear 24 rotates.

また、図３に示すように、センサ部２６は、給紙カセット装着部２２の一方端近傍に配置されている。また、センサ部２６は、突起部２６ａを有する。給紙カセット１０が昇華型プリンタ２０の給紙カセット装着部２２に装着されると、図４に示すように、突起部２６ａが給紙カセット１０によって押し込まれることによって、センサ部２６により給紙カセット１０が装着されたことが検出される。また、筐体３６は、図２に示すように、蓋部材３６ａおよび３６ｂと、押しボタンスイッチ３６ｃとを含んでいる。また、筐体３６の蓋部材３６ａは、給紙カセット１０を昇華型プリンタ２０に装着するために設けられている。また、筐体３６の蓋部材３６ｂは、インクシートカートリッジ９０を昇華型プリンタに装着するために設けられている。また、筐体３６の押しボタンスイッチ３６ｃは、ユーザが印刷を開始する際の操作ボタンとして設けられている。   Further, as shown in FIG. 3, the sensor unit 26 is disposed in the vicinity of one end of the sheet cassette mounting unit 22. Moreover, the sensor part 26 has the projection part 26a. When the paper feed cassette 10 is mounted on the paper feed cassette mounting portion 22 of the sublimation printer 20, the projection 26a is pushed by the paper feed cassette 10 as shown in FIG. It is detected that 10 is mounted. The housing 36 includes lid members 36a and 36b and a push button switch 36c, as shown in FIG. The lid member 36 a of the housing 36 is provided for mounting the paper feed cassette 10 to the sublimation printer 20. The lid member 36b of the housing 36 is provided for mounting the ink sheet cartridge 90 on the sublimation printer. Further, the push button switch 36c of the housing 36 is provided as an operation button when the user starts printing.

図１１は、図１に示した本発明の第１実施形態による給紙カセットの第２押圧部材の用紙に対する押圧状態を説明するための図である。次に、図９および図１１を参照して、第１実施形態による給紙カセット１０の第２押圧部材６０の用紙５０に対する押圧状態を説明する。   FIG. 11 is a view for explaining a pressing state of the second pressing member of the sheet feeding cassette according to the first embodiment of the present invention shown in FIG. Next, with reference to FIG. 9 and FIG. 11, the pressing state with respect to the paper 50 of the 2nd press member 60 of the paper feed cassette 10 by 1st Embodiment is demonstrated.

まず、図９に示すように、用紙５０が少ない場合、カセット本体１１（図６参照）の第１押圧部材１１ｆ（図６参照）が用紙５０の側面部を押圧するとともに、第２押圧部材６０の押圧部６０ｃが用紙５０の上面を所定の押圧力で押圧する。また、図１１に示すように、用紙５０が多い場合、第２押圧部材６０は、傾斜部６０ｂおよび接合部６０ｂを弾性変形させながら、押圧部６０ｃが用紙５０の上面を所定の押圧力で押圧する。   First, as shown in FIG. 9, when the number of sheets 50 is small, the first pressing member 11 f (see FIG. 6) of the cassette body 11 (see FIG. 6) presses the side surface portion of the sheet 50 and the second pressing member 60. The pressing portion 60c presses the upper surface of the paper 50 with a predetermined pressing force. As shown in FIG. 11, when the number of sheets 50 is large, the second pressing member 60 presses the upper surface of the sheet 50 with a predetermined pressing force while elastically deforming the inclined portion 60b and the joining portion 60b. To do.

ここで、第１実施形態では、図１１に示すように、用紙５０が多い状態において第２押圧部材６０が用紙５０を押圧した際に、用紙５０からの反力により、第２押圧部材６０の傾斜部６０ｂと平坦部６０ａとの接合部６０ｄを中心軸として曲げモーメントＭが発生する場合に、傾斜部６０ｂと平坦部６０ａとのなす角度が鋭角になる側の平坦部６０ａの他方領域６０ｆは、上記曲げモーメントＭを打ち消す方向の反力Ｆを発生させることができる。したがって、傾斜部６０ｂと平坦部６０ａとの接合部６０ｄ近傍での傾斜部６０ｂの形状は変形の度合いが小さくなる一方、傾斜部６０ｂのうちで、接合部６０ｄから遠く、押圧部６０ｃに近い領域では、傾斜部６０ｂの形状を変化させながら（下方向に湾曲して）、用紙５０を押圧する。   Here, in the first embodiment, as shown in FIG. 11, when the second pressing member 60 presses the paper 50 in a state where there are many papers 50, the reaction force from the paper 50 causes the second pressing member 60. When the bending moment M is generated with the joint 60d between the inclined portion 60b and the flat portion 60a as the central axis, the other region 60f of the flat portion 60a on the side where the angle formed by the inclined portion 60b and the flat portion 60a becomes an acute angle is The reaction force F in the direction to cancel the bending moment M can be generated. Therefore, the shape of the inclined portion 60b in the vicinity of the joint portion 60d between the inclined portion 60b and the flat portion 60a is less deformed, while the inclined portion 60b is a region far from the joint portion 60d and close to the pressing portion 60c. Then, the paper 50 is pressed while changing the shape of the inclined portion 60b (curved downward).

図１２は、本発明の第１実施形態による給紙カセットおよび昇華型プリンタの断面図である。次に、図３〜図５および図１２を参照して、本発明の第１実施形態による給紙カセットおよび昇華型プリンタの給紙動作を説明する。   FIG. 12 is a cross-sectional view of the paper feed cassette and the sublimation printer according to the first embodiment of the present invention. Next, with reference to FIG. 3 to FIG. 5 and FIG. 12, the sheet feeding operation of the sheet feeding cassette and the sublimation printer according to the first embodiment of the present invention will be described.

まず、図３に示した状態から、図４に示すように、給紙カセット１０を昇華型プリンタ２０に装着する。なお、給紙カセット１０には、図５に示すように、持ち上げ部材１２の上面に用紙５０が積層されている。給紙カセット１０が昇華型プリンタ２０に装着された場合には、図５に示すように、用紙５０が積層された持ち上げ部材１２の上方に給紙ローラ２３が位置する。また、持ち上げ部材１２の下方（カセット本体１１の切欠部１１ｃに対応する位置）には、押上げ部材２５が位置する。この状態で、ステッピングモータ２９(図４参照)が駆動する。ステッピングモータ２９の駆動力は、図示しない駆動力伝達機構を介して、押上げ部材２５を、図１２に示すように、Ｅ方向（上方）へ回動する。押上げ部材２５は、給紙カセット１０の装着時には、持ち上げ部材１２の下方に位置するので、押上げ部材２５がＥ方向（上方）へ回動することにより、持ち上げ部材１２も、係合部１２ａを中心に図１３に示すＦ方向に回動する。これによって、持ち上げ部材１２に積層された用紙５０が給紙ローラ２３に当接するまで上方に押し上げられる。   First, from the state shown in FIG. 3, the paper feed cassette 10 is mounted on the sublimation printer 20 as shown in FIG. In the paper feed cassette 10, as shown in FIG. 5, the paper 50 is stacked on the upper surface of the lifting member 12. When the paper feed cassette 10 is mounted on the sublimation printer 20, the paper feed roller 23 is positioned above the lifting member 12 on which the paper 50 is stacked, as shown in FIG. Further, a push-up member 25 is located below the lifting member 12 (a position corresponding to the notch 11c of the cassette body 11). In this state, the stepping motor 29 (see FIG. 4) is driven. The driving force of the stepping motor 29 rotates the push-up member 25 in the E direction (upward) as shown in FIG. 12 via a driving force transmission mechanism (not shown). The push-up member 25 is positioned below the lifting member 12 when the paper feed cassette 10 is mounted. Therefore, when the push-up member 25 rotates in the E direction (upward), the lift member 12 is also engaged with the engaging portion 12a. Is rotated in the F direction shown in FIG. As a result, the paper 50 stacked on the lifting member 12 is pushed upward until it contacts the paper feed roller 23.

また、このとき、ステッピングモータ２７（図４参照）も駆動しており、ステッピングモータ２７の駆動力は、複数の中間ギア３３を介して給紙ローラギア２４を図４のＧ方向に回転させる。これによって、給紙ローラ２３は図１２に示すＧ方向に回転される。   At this time, the stepping motor 27 (see FIG. 4) is also driven, and the driving force of the stepping motor 27 rotates the paper feed roller gear 24 in the G direction in FIG. As a result, the paper feed roller 23 is rotated in the G direction shown in FIG.

上記押し上げられた用紙５０は、図１２に示すように、Ｇ方向に回転している給紙ローラ２３に押圧される。そして、給紙ローラ２３と用紙５０との摩擦力により、用紙５０は、昇華型プリンタ２０の内部へ搬送される。   The pushed-up paper 50 is pressed by the paper feed roller 23 rotating in the G direction as shown in FIG. The paper 50 is conveyed into the sublimation printer 20 by the frictional force between the paper feed roller 23 and the paper 50.

ここで、第１実施形態では、用紙５０が昇華型プリンタ２０の内部へ搬送（給紙）されている際も、第２押圧部材６０（図１参照）は用紙５０の上面を常に押圧しているため、用紙５０の幅方向の湾曲（反り）も発生せず、給紙動作は問題なく行われる。   Here, in the first embodiment, the second pressing member 60 (see FIG. 1) always presses the upper surface of the paper 50 even when the paper 50 is conveyed (paper fed) into the sublimation printer 20. Therefore, the sheet 50 is not curved (warped) in the width direction, and the sheet feeding operation is performed without any problem.

第１実施形態では、上記のように、第２押圧部材６０を、蓋部材１３の下面部１３ｂに取り付けられる平坦部６０ａの下面のうちの端部以外の領域で平坦部６０ａと一体的に接合され、カセット本体１１の内底面１１ｋに向かって斜め方向に延びるとともに、少なくとも平坦部６０ａとの接合部６０ｄが弾性変形可能な傾斜部６０ｂを一体的に含むように構成することによって、用紙５０の枚数が多い状態で、第２押圧部材６０が用紙５０を押圧した際に、用紙５０からの反力により第２押圧部材６０の傾斜部６０ｂと平坦部６０ａとの接合部６０ｄを中心軸として曲げモーメントＭが発生する場合に、傾斜部６０ｂと平坦部６０ａとがなす角度が鋭角にとなる平坦部の他方領域６０ｆは、上記曲げモーメントＭを打ち消す方向の反力Ｆを発生させることができる。これにより、用紙５０の枚数が多い状態でも、平坦部６０ａが蓋部材１３の下面部１３ｂから剥がれて外れてしまうことを抑制することができる。また、第２押圧部材を、カセット本体に収納された用紙の上面の幅方向の中央部近傍を押圧するように構成することによって、第２押圧部材は、用紙の上面の幅方向の中央部を押圧することができるため、用紙の幅方向の湾曲（反り）を有効に抑制することができる。これにより、用紙の幅方向の反りに起因する用紙の斜め方向への搬送を抑制することできる。また、第２押圧部材６０を、蓋部材１３の下面部１３ｂに取り付けられる平坦部６０ａと、平坦部６０ａの下面のうちの端部以外の領域で平坦部６０ａと一体的に接合される傾斜部６０ｂと、傾斜部６０ｂの先端部分に設けられた押圧部６０ｃとを一体的に含むように構成するとともに、蓋部材１３をカセット本体１１の上部に配置した際に、押圧部６０ｃがカセット本体１１の内底面１１ｋに当接されるように構成することによって、用紙５０の下方に用紙５０の上面を押圧部６０ｃに当接させるための押し上げ機構を設ける必要がないので部品点数の増加を抑制することができる。   In the first embodiment, as described above, the second pressing member 60 is integrally joined to the flat portion 60a in a region other than the end portion of the lower surface of the flat portion 60a attached to the lower surface portion 13b of the lid member 13. The sheet 50 is formed so that it extends in an oblique direction toward the inner bottom surface 11k of the cassette body 11 and at least the joint portion 60d with the flat portion 60a integrally includes an elastically deformable inclined portion 60b. When the second pressing member 60 presses the paper 50 with a large number of sheets, the reaction force from the paper 50 causes the second pressing member 60 to bend around the joint 60d between the inclined portion 60b of the second pressing member 60 and the flat portion 60a as the central axis. When the moment M is generated, the other region 60f of the flat portion where the angle formed by the inclined portion 60b and the flat portion 60a is an acute angle generates a reaction force F in a direction to cancel the bending moment M. It can be. Thereby, even when the number of sheets 50 is large, it is possible to prevent the flat portion 60 a from being peeled off from the lower surface portion 13 b of the lid member 13. Further, by configuring the second pressing member so as to press the vicinity of the central portion in the width direction of the upper surface of the paper stored in the cassette main body, the second pressing member allows the central portion in the width direction of the upper surface of the paper to be Since it can be pressed, it is possible to effectively suppress bending (warping) in the width direction of the paper. Thereby, the conveyance of the sheet in the oblique direction due to the warp in the width direction of the sheet can be suppressed. In addition, the flat portion 60a attached to the lower surface portion 13b of the lid member 13 and the inclined portion that is integrally joined to the flat portion 60a in a region other than the end portion of the lower surface of the flat portion 60a. 60 b and a pressing portion 60 c provided at the tip of the inclined portion 60 b are integrally included, and when the lid member 13 is disposed on the upper portion of the cassette body 11, the pressing portion 60 c is connected to the cassette body 11. By being configured to be in contact with the inner bottom surface 11k, it is not necessary to provide a push-up mechanism for bringing the upper surface of the paper 50 into contact with the pressing portion 60c below the paper 50, thereby suppressing an increase in the number of parts. be able to.

また、第１実施形態では、押圧部６０ｃを、断面形状が実質的にＬ字形状を有するとともに、Ｌ字形状の角部で用紙を線上に押圧するように構成することによって、用紙５０と押圧部６０ｃとの接触面積を小さくすることができるので、用紙５０と押圧部６０ｃとの摩擦抵抗を小さくすることができる。このため、給紙時の用紙５０と押圧部６０ｃとの摩擦抵抗に起因する搬送不良の発生が抑制されるので、スムーズな給紙を行うことができる。   In the first embodiment, the pressing portion 60c has a substantially L-shaped cross-section and is configured to press the paper on the line at the corners of the L-shape, thereby pressing the paper 50 with the paper 50. Since the contact area with the part 60c can be reduced, the frictional resistance between the paper 50 and the pressing part 60c can be reduced. For this reason, since the occurrence of conveyance failure due to the frictional resistance between the paper 50 and the pressing portion 60c during paper feeding is suppressed, smooth paper feeding can be performed.

また、第１実施形態では、第２押圧部材６０の平坦部６０ａを、粘着テープ１４（両面テープ）によって蓋部材１３の下面部１３ｂに取り付けることによって、容易に第２押圧部材６０を蓋部材１３に取り付けることができる。   Moreover, in 1st Embodiment, the 2nd press member 60 is easily attached to the cover member 13 by attaching the flat part 60a of the 2nd press member 60 to the lower surface part 13b of the cover member 13 with the adhesive tape 14 (double-sided tape). Can be attached to.

また、第１実施形態では、傾斜部６０ｂを、平坦部６０ａの実質的に中央部に接合することによって、第２押圧部材６０による用紙５０の押圧時の曲げモーメントＭを打ち消す方向の反力Ｆを発生させる領域の面積を大きくすることができるので、平坦部６０ａが蓋部材１３の下面部１３ｂから剥がれて外れてしまうことをより確実に抑制することができる。   In the first embodiment, the reaction force F in the direction that cancels the bending moment M when the sheet 50 is pressed by the second pressing member 60 by joining the inclined portion 60b to the substantially central portion of the flat portion 60a. Therefore, it is possible to more reliably prevent the flat portion 60a from peeling off from the lower surface portion 13b of the lid member 13 and coming off.

図１３〜図１５は、本発明の第１実施形態の変形例を説明するための図である。この第１実施形態の変形例では、図１３〜図１５に示すように、蓋部材１３の下面部１３ｂに第２押圧部材６０を取り付ける構造を設けている。この第１実施形態の変形例による給紙カセット１０は、図１３に示すように、蓋部材１３の下面部１３ｂから突出するように、第１係合部１３ｃおよび第２係合部１３ｄを設ける。なお、第１係合部１３ｃおよび第２係合部１３ｄは、図１４に示すように、連結部１３ｅによって連結されている。さらに、第１係合部１３ｃおよび第２係合部１３ｄの近傍に、リブ１３ｆを設けている。また、この第１実施形態の変形例では、図１４に示すように、第２押圧部材６０の平坦部６０ａをリブ１３ｆに当接させながら、矢印Ｃの方向にスライドさせることによって、第１係合部１３ｃと蓋部材１３の下面部１３ｂとの隙間、および、第２係合部１３ｄと蓋部材１３の下面部１３ｂとの隙間に、それぞれ、第２押圧部材６０の平坦部６０ａの一方領域６０ｅおよび他方領域６０ｆが嵌め込まれることによって、第２押圧部材６０は、蓋部材１３の下面部１３ｂに取り付けられる。このとき、第２押圧部材６０の平坦部６０ａの一方領域６０ｅは、蓋部材１３の第１係合部１３ｃの内面部１３ｇと当接される。また、第２押圧部材６０の平坦部６０ａの領域６０ｆは、蓋部材１３の第２係合部１３ｄの下面部１３ｈに当接される。また、第２押圧部材６０の平坦部６０ａの上面は、蓋部材１３の下面部１３ｂに当接される。これにより、第２押圧部材６０の平坦部６０ａは、蓋部材１３の下面部１３ｂに固定される。なお、リブ１３ｆは、第２押圧部材６０が蓋部材１３から抜ける方向（Ｃ方向と逆方向）にスライドした場合の抜け防止の機能を有する。この第１実施形態の変形例では、上記のように、蓋部材１３の下面部１３ｂに第２押圧部材６０を取り付ける構造を設けることによって、粘着テープ１４が不要になる。なお、この変形例のその他の効果は、第１実施形態と同様である。   13 to 15 are diagrams for explaining modifications of the first embodiment of the present invention. In the modification of the first embodiment, as shown in FIGS. 13 to 15, a structure in which the second pressing member 60 is attached to the lower surface portion 13 b of the lid member 13 is provided. As shown in FIG. 13, the sheet feeding cassette 10 according to the modification of the first embodiment is provided with a first engagement portion 13 c and a second engagement portion 13 d so as to protrude from the lower surface portion 13 b of the lid member 13. . In addition, the 1st engaging part 13c and the 2nd engaging part 13d are connected by the connection part 13e, as shown in FIG. Further, ribs 13f are provided in the vicinity of the first engaging portion 13c and the second engaging portion 13d. Further, in the modification of the first embodiment, as shown in FIG. 14, the first engagement member is slid in the direction of the arrow C while the flat portion 60a of the second pressing member 60 is in contact with the rib 13f. One region of the flat portion 60a of the second pressing member 60 is formed in the gap between the joint portion 13c and the lower surface portion 13b of the lid member 13 and in the gap between the second engagement portion 13d and the lower surface portion 13b of the lid member 13, respectively. The second pressing member 60 is attached to the lower surface portion 13b of the lid member 13 by fitting the 60e and the other region 60f. At this time, one region 60e of the flat portion 60a of the second pressing member 60 is brought into contact with the inner surface portion 13g of the first engaging portion 13c of the lid member 13. Further, the region 60 f of the flat portion 60 a of the second pressing member 60 is in contact with the lower surface portion 13 h of the second engaging portion 13 d of the lid member 13. Further, the upper surface of the flat portion 60 a of the second pressing member 60 is in contact with the lower surface portion 13 b of the lid member 13. Thereby, the flat portion 60 a of the second pressing member 60 is fixed to the lower surface portion 13 b of the lid member 13. The rib 13f has a function of preventing the second pressing member 60 from coming off when sliding in the direction in which the second pressing member 60 comes off the cover member 13 (the direction opposite to the C direction). In the modification of the first embodiment, as described above, the adhesive tape 14 becomes unnecessary by providing a structure for attaching the second pressing member 60 to the lower surface portion 13b of the lid member 13. The remaining effects of this modification are the same as those of the first embodiment.

（第２実施形態）
図１６および図１７は、本発明の第２実施形態による第２押圧部材の斜視図および平面図である。図１８および図１９は、本発明の第２実施形態による給紙カセットの構造を示した図である。図１６〜図１９を参照して、この第２実施形態では、第１実施形態と異なる構造を有する第２押圧部材７０について説明する。なお、この第２実施形態の第２押圧部材７０以外の構造は、上記第１実施形態の構造と同様であるのでその説明を省略する。 (Second Embodiment)
16 and 17 are a perspective view and a plan view of a second pressing member according to the second embodiment of the present invention. 18 and 19 are views showing the structure of a paper feed cassette according to the second embodiment of the present invention. With reference to FIGS. 16-19, this 2nd Embodiment demonstrates the 2nd press member 70 which has a structure different from 1st Embodiment. In addition, since structures other than the 2nd press member 70 of this 2nd Embodiment are the same as the structure of the said 1st Embodiment, the description is abbreviate | omitted.

この第２実施形態では、図１８に示すように、蓋部材１３の下面部１３ｂに用紙５０の上面を押圧する樹脂製の第２押圧部材７０が蓋材部１３とは別体で設けられている。この第２押圧部材７０の平坦部７０ａは、図１６に示すように、傾斜部７０ｂとの接合線を境界線として左右にそれぞれ、第１平坦部７１ａと第２平坦部７１ｂとを含む。第２平坦部７１ｂは、第１平坦部７１ａと傾斜部７０ｂとの接合部７０ｄの所定領域に、Ｕ字状の切り込み部７０ｅを設け、第１平坦部７０ａのＵ字状の切り込み部７０ｅの内側の領域を、接合部７０ｄの接合線に沿って１８０°折り返して形成される。また、図１８に示すように、蓋部材１３をカセット本体１１に取り付けた際は、第２押圧部材７０の押圧部７０ｃがカセット本体１１の内底面１１ｋのリブ１１ｈに近接されるように構成されている。また、第２実施形態では、図１８に示すように、第２押圧部材７０の押圧部７０ｃは、断面形状がＬ字形状を有し、第２押圧部材７０は、蓋部材１３の下面部１３ｂに、粘着テープ１４によって取り付けられている。また、図１９に示すように、第２押圧部材７０の押圧部７０ｃは、カセット本体１１の第１押圧部材１１ｆが用紙５０を側面から押圧する作用線１００上（一点鎖線）に設けられている。   In the second embodiment, as shown in FIG. 18, a resin-made second pressing member 70 that presses the upper surface of the paper 50 against the lower surface portion 13 b of the lid member 13 is provided separately from the lid material portion 13. Yes. As shown in FIG. 16, the flat portion 70 a of the second pressing member 70 includes a first flat portion 71 a and a second flat portion 71 b on the left and right, respectively, with a joint line with the inclined portion 70 b as a boundary line. The second flat part 71b is provided with a U-shaped cut part 70e in a predetermined region of the joint part 70d between the first flat part 71a and the inclined part 70b, and the U-shaped cut part 70e of the first flat part 70a is provided. The inner region is formed by folding back 180 ° along the joining line of the joining portion 70d. As shown in FIG. 18, when the lid member 13 is attached to the cassette body 11, the pressing portion 70 c of the second pressing member 70 is configured to be close to the rib 11 h of the inner bottom surface 11 k of the cassette body 11. ing. In the second embodiment, as shown in FIG. 18, the pressing portion 70 c of the second pressing member 70 has an L-shaped cross section, and the second pressing member 70 is the lower surface portion 13 b of the lid member 13. It is attached with an adhesive tape 14. Further, as shown in FIG. 19, the pressing portion 70 c of the second pressing member 70 is provided on an action line 100 (a dashed line) where the first pressing member 11 f of the cassette body 11 presses the paper 50 from the side surface. .

図２０は、図１６に示した本発明の第２実施形態による給紙カセットの第２押圧部材の用紙に対する押圧状態を説明するための図である。次に、図１８〜図２０を参照して、第２実施形態による給紙カセット１０の第２押圧部材７０の用紙５０に対する押圧状態を説明する。   FIG. 20 is a view for explaining the pressing state of the second pressing member of the sheet feeding cassette according to the second embodiment of the present invention shown in FIG. Next, with reference to FIGS. 18-20, the press condition with respect to the paper 50 of the 2nd press member 70 of the paper feed cassette 10 by 2nd Embodiment is demonstrated.

図１８に示すように、用紙５０が少ない場合、カセット本体１１（図１９参照）の第１押圧部材１１ｆ（図１９参照）が用紙５０の側面部を押圧するとともに、第２押圧部材７０は押圧部７０ｃが用紙５０の上面を所定の押圧力で押圧する。また、図２０に示すように、用紙５０が多い場合、第２押圧部材７０は傾斜部７０ｂおよび接合部７０ｄを弾性変形させながら、押圧部７０ｃが用紙５０の上面を所定の押圧力で押圧する。   As shown in FIG. 18, when the number of sheets 50 is small, the first pressing member 11 f (see FIG. 19) of the cassette body 11 (see FIG. 19) presses the side surface portion of the sheet 50 and the second pressing member 70 presses. The portion 70c presses the upper surface of the paper 50 with a predetermined pressing force. As shown in FIG. 20, when there are many sheets 50, the second pressing member 70 elastically deforms the inclined portion 70b and the joining portion 70d, and the pressing portion 70c presses the upper surface of the sheet 50 with a predetermined pressing force. .

ここで、第２実施形態では、図２０に示すように、用紙５０が多い状態において第２押圧部材７０が用紙５０を押圧した際に、用紙５０からの反力により、第２押圧部材７０の傾斜部７０ｂと平坦部７０ａとの接合部７０ｄを中心軸として曲げモーメントＭが発生する場合に、傾斜部７０ｂと平坦部７０ａとのなす角度が鋭角になる第２平坦部７１ｂは、上記曲げモーメントＭを打ち消す方向の反力Ｆを発生させることができる。したがって、傾斜部７０ｂと平坦部７０ａとの接合部７０ｄ近傍での傾斜部７０ｂの形状は変形の度合いが小さくなる一方、傾斜部７０ｂのうちで、接合部７０ｄから遠く、押圧部７０ｃに近い領域では、傾斜部７０ｂの形状を変化させながら（下方向に湾曲して）、用紙５０を押圧する。   Here, in the second embodiment, as shown in FIG. 20, when the second pressing member 70 presses the paper 50 in a state where there are many papers 50, the reaction force from the paper 50 causes the second pressing member 70. When the bending moment M is generated with the joint portion 70d between the inclined portion 70b and the flat portion 70a as the central axis, the second flat portion 71b having an acute angle between the inclined portion 70b and the flat portion 70a has the bending moment described above. A reaction force F in a direction to cancel M can be generated. Therefore, the shape of the inclined portion 70b in the vicinity of the joint portion 70d between the inclined portion 70b and the flat portion 70a is less deformed, while the region of the inclined portion 70b that is far from the joint portion 70d and close to the pressing portion 70c. Then, the sheet 50 is pressed while changing the shape of the inclined portion 70b (curved downward).

なお、この第２実施形態の給紙カセットおよび昇華型プリンタの給紙動作は、上記第１実施形態の動作と同様であるのでその説明を省略する。   Note that the paper feeding operation of the paper feeding cassette and the sublimation printer according to the second embodiment is the same as the operation of the first embodiment, and a description thereof will be omitted.

第２実施形態では、上記のように、第２押圧部材７０の平坦部７０ａは、傾斜部７０ｂとの接合線を境界線として左右にそれぞれ、第１平坦部７１ａと第２平坦部７１ｂとを含み、第２平坦部７１ｂは、第１平坦部７１ａと傾斜部７０ｂとの接合部７０ｄの所定領域に、Ｕ字状の切り込み部７０ｅを設け、第１平坦部７１ａのＵ字状の切り込み部７０ｅの内側の領域を、接合部７０ｄの接合線に沿って１８０°折り返すことにより形成されていることによって、容易に、平坦部７０ａの下面のうちの端部以外の領域に傾斜部７０ｂが一体的に接合された構造を得ることができる。   In the second embodiment, as described above, the flat portion 70a of the second pressing member 70 includes the first flat portion 71a and the second flat portion 71b on the left and right, respectively, with the joining line with the inclined portion 70b as a boundary line. The second flat part 71b includes a U-shaped cut part 70e in a predetermined region of the joint part 70d between the first flat part 71a and the inclined part 70b, and a U-shaped cut part of the first flat part 71a. By forming the inner region of 70e by folding back 180 ° along the bonding line of the bonding portion 70d, the inclined portion 70b can be easily integrated with the region other than the end portion of the lower surface of the flat portion 70a. A bonded structure can be obtained.

図２１および図２２は、本発明の第２実施形態の変形例を説明するための図である。この第２実施形態の変形例では、図２１および図２２に示すように、給紙カセット１０の用紙５０を押圧する第２押圧部材７５の平坦部７５ａは、傾斜部７５ｂとの接合線を境界線として左右にそれぞれ、第１平坦部７６ａと第２平坦部７６ｂとを含む。第２平坦部７６ｂは、第１平坦部７６ａと傾斜部７５ｂとの接合部７５ｄの所定領域に、Ｕ字状の切り込み部７５ｅを設け、第１平坦部７６ａのＵ字状の切り込み部７５ｅの内側の領域を、接合部７６ｂの接合線に沿って１８０°折り返して形成される。なお、傾斜部７５ｂが第１平坦部７６ａ側に傾斜している点が、第２実施形態の第２押圧部材７０の傾斜部７０ｂと異なる。このように構成しても、第２実施形態と同様の効果を得ることができる。   21 and 22 are diagrams for explaining a modification of the second embodiment of the present invention. In the modification of the second embodiment, as shown in FIGS. 21 and 22, the flat portion 75a of the second pressing member 75 that presses the paper 50 of the paper feed cassette 10 is bounded by the joint line with the inclined portion 75b. The line includes a first flat part 76a and a second flat part 76b on the left and right, respectively. The second flat portion 76b is provided with a U-shaped cut portion 75e in a predetermined region of the joint portion 75d between the first flat portion 76a and the inclined portion 75b, and the U-shaped cut portion 75e of the first flat portion 76a. The inner region is formed by folding back 180 ° along the joining line of the joining portion 76b. In addition, the point which the inclination part 75b inclines to the 1st flat part 76a side differs from the inclination part 70b of the 2nd press member 70 of 2nd Embodiment. Even if comprised in this way, the effect similar to 2nd Embodiment can be acquired.

（第３実施形態）
図２３および図２４は、本発明の第３実施形態による第２押圧部材の斜視図および平面図である。図２５および図２６は、本発明の第３実施形態による給紙カセットの構造を示した図である。まず、図２３〜図２６を参照して、この第３実施形態では、上記第１実施形態および第２実施形態と異なり、第２押圧部材８０の傾斜部８０ｂが支持部８０ｆにより支持される構造について説明する。なお、この第３実施形態の第２押圧部材８０以外の構造は、上記第１実施形態の構造と同様であるのでその説明を省略する。 (Third embodiment)
23 and 24 are a perspective view and a plan view of the second pressing member according to the third embodiment of the present invention. 25 and 26 are diagrams showing the structure of a paper feed cassette according to the third embodiment of the present invention. First, referring to FIGS. 23 to 26, in the third embodiment, unlike the first embodiment and the second embodiment, the inclined portion 80b of the second pressing member 80 is supported by the support portion 80f. Will be described. In addition, since structures other than the 2nd press member 80 of this 3rd Embodiment are the same as the structure of the said 1st Embodiment, the description is abbreviate | omitted.

この第３実施形態による給紙カセット１０では、図２５に示すように、蓋部材１３の下面部１３ｂに用紙５０の上面を押圧する樹脂製の第２押圧部材８０が蓋材部１３とは別体で設けられている。この第２押圧部材８０は、図２３に示すように、第１平坦部８１ａの下面の端部で第１平坦部８１ａと一体的に接合され、傾斜部８０ｂ向かって斜め方向に延びるとともに、傾斜部８０ｂと接合される支持部８０ｆを含む。なお、支持部８０ｆは、傾斜部８０ｂに設けられた１対の切り欠き部８０ｇに、支持部８０ｆの端部に設けられた1対の係合部８０ｈを係合させることによって、傾斜部８０ｃを支持している。また、図２５に示すように、蓋部材１３をカセット本体１１に取り付けた際は、第２押圧部材８０の押圧部８０ｃがカセット本体１１の内底面１１ｋのリブ１１ｈに近接されるように構成されている。また、第３実施形態では、図２５に示すように、第２押圧部材８０の押圧部８０ｃは、断面形状がＬ字形状を有し、第２押圧部材８０は、蓋部材１３の下面部１３ｂに、粘着テープ１４によって取り付けられている。さらに、図２６に示すように、第２押圧部材８０の押圧部８０ｃは、カセット本体１１の第１押圧部材１１ｆが用紙５０を側面から押圧する作用線１００上（一点鎖線）に設けられている。   In the paper feed cassette 10 according to the third embodiment, as shown in FIG. 25, a resin-made second pressing member 80 that presses the upper surface of the paper 50 against the lower surface portion 13 b of the lid member 13 is different from the lid material portion 13. It is provided by the body. As shown in FIG. 23, the second pressing member 80 is integrally joined to the first flat portion 81a at the end of the lower surface of the first flat portion 81a, and extends in an oblique direction toward the inclined portion 80b. The support part 80f joined to the part 80b is included. In addition, the support part 80f engages the pair of notch parts 80g provided in the inclined part 80b with the pair of engaging parts 80h provided in the end part of the support part 80f, thereby causing the inclined part 80c. Support. 25, when the lid member 13 is attached to the cassette body 11, the pressing portion 80c of the second pressing member 80 is configured to be close to the rib 11h of the inner bottom surface 11k of the cassette body 11. ing. In the third embodiment, as shown in FIG. 25, the pressing portion 80 c of the second pressing member 80 has an L-shaped cross section, and the second pressing member 80 includes the lower surface portion 13 b of the lid member 13. It is attached with an adhesive tape 14. Furthermore, as shown in FIG. 26, the pressing portion 80 c of the second pressing member 80 is provided on an action line 100 (a dashed line) where the first pressing member 11 f of the cassette body 11 presses the paper 50 from the side surface. .

図２６は、図２３に示した本発明の第３実施形態による給紙カセットの第２押圧部材の用紙に対する押圧状態を説明するための図である。次に、図２５および図２７を参照して、第３実施形態による給紙カセット１０の第２押圧部材８０の用紙５０に対する押圧状態を説明する。   FIG. 26 is a view for explaining a pressing state of the second pressing member of the sheet cassette according to the third embodiment of the present invention shown in FIG. 23 against the sheet. Next, with reference to FIG. 25 and FIG. 27, the pressing state with respect to the paper 50 of the 2nd press member 80 of the paper feed cassette 10 by 3rd Embodiment is demonstrated.

図２５に示すように、用紙５０が少ない場合、第２押圧部材８０は押圧部８０ｃが用紙５０の上面を所定の押圧力で押圧する。また、図２７に示すように、用紙５０が多い場合、第２押圧部材８０は傾斜部８０ｂおよび接合部８０ｄを弾性変形させながら、押圧部８０ｃが用紙５０の上面を所定の押圧力で押圧する。   As shown in FIG. 25, when the number of sheets 50 is small, the second pressing member 80 causes the pressing portion 80c to press the upper surface of the sheet 50 with a predetermined pressing force. As shown in FIG. 27, when the number of sheets 50 is large, the second pressing member 80 elastically deforms the inclined portion 80b and the joining portion 80d, and the pressing portion 80c presses the upper surface of the sheet 50 with a predetermined pressing force. .

ここで、第３実施形態では、図２７に示すように、用紙５０が多い状態において第２押圧部材８０が用紙５０を押圧した際に、用紙５０からの反力により、第２押圧部材８０の傾斜部８０ｂと平坦部８０ａとの接合部８０ｄを中心軸として曲げモーメントＭが発生する場合に、傾斜部８０ｂと平坦部８０ａとのなす角度が鋭角になる第２平坦部８１ｂは、上記曲げモーメントＭを打ち消す方向の反力Ｆを発生させることができる。したがって、傾斜部８０ｂと平坦部８０ａとの接合部８０ｄ近傍での傾斜部８０ｂの形状は変形の度合いが小さくなる一方、傾斜部８０ｂのうちで、接合部８０ｄから遠く、押圧部８０ｃに近い領域では、傾斜部８０ｂの形状を変化させながら（下方向に湾曲して）、用紙５０を押圧する。   Here, in the third embodiment, as shown in FIG. 27, when the second pressing member 80 presses the paper 50 in a state where there are many papers 50, the reaction force from the paper 50 causes the second pressing member 80. When the bending moment M is generated with the joint 80d between the inclined portion 80b and the flat portion 80a as the central axis, the second flat portion 81b having an acute angle between the inclined portion 80b and the flat portion 80a A reaction force F in a direction to cancel M can be generated. Therefore, the shape of the inclined portion 80b in the vicinity of the joint portion 80d between the inclined portion 80b and the flat portion 80a is less deformed, while the inclined portion 80b is a region far from the joint portion 80d and close to the pressing portion 80c. Then, the sheet 50 is pressed while changing the shape of the inclined portion 80b (curved downward).

なお、この第３実施形態の給紙カセットおよび昇華型プリンタの給紙動作は、上記第１実施形態の動作と同様であるのでその説明を省略する。   Note that the paper feeding operation of the paper feeding cassette and the sublimation printer of the third embodiment is the same as the operation of the first embodiment, and a description thereof will be omitted.

第３実施形態では、上記のように、第２押圧部材８０は、第１平坦部８１ａの端部で第１平坦部８１ａと一体的に連結され、傾斜部８０ｂに向かって斜め方向に延びるとともに、傾斜部８０ｂを支持するための支持部８０ｆを含むように構成することによって、第２押圧部材８０の傾斜部８０ｂが、支持部８０ｆによって支持されるため、傾斜部８０ｂの剛性が向上される。このため、特に用紙５０の枚数が多い状態で、第２押圧部材８０が用紙５０を押圧した場合の、傾斜部８０ｂと第１平坦部８１ａとの接合部８０ｄにおける傾斜部８０ｂの変位（変形量）をより小さくすることができるので、傾斜部８０ｂの基本形状を容易に保持することができる。   In the third embodiment, as described above, the second pressing member 80 is integrally connected to the first flat portion 81a at the end of the first flat portion 81a and extends in an oblique direction toward the inclined portion 80b. By including the support part 80f for supporting the inclined part 80b, the inclined part 80b of the second pressing member 80 is supported by the support part 80f, so that the rigidity of the inclined part 80b is improved. . Therefore, the displacement (deformation amount) of the inclined portion 80b at the joint 80d between the inclined portion 80b and the first flat portion 81a when the second pressing member 80 presses the paper 50 particularly in a state where the number of the sheets 50 is large. ) Can be made smaller, so that the basic shape of the inclined portion 80b can be easily maintained.

図２８および図２９は、本発明の第３実施形態の変形例を説明するための図である。この第３実施形態の変形例では、図２８および図２９に示すように、給紙カセット１０の用紙５０を押圧する第２押圧部材８５は、第１平坦部８６ａの下面の端部で第１平坦部８６ａと一体的に接合され、傾斜部８５ｂに向かって斜め方向に延びるとともに、傾斜部８５ｂと接合される支持部８５ｆが設けられている。また、支持部８５ｆは、傾斜部８５ｂに設けられた１対の切り欠き部８５ｇに、支持部８５ｆの端部に設けられた1対の係合部８５ｈを係合させることによって、傾斜部８５ｂに接合されている。なお、傾斜部８５ｂが第１平坦部８６ａ側に傾斜させている点が、第３実施形態の第２押圧部材８０の傾斜部８０ｂの傾斜方向と異なるが、第３実施形態と同様の効果を得ることができる。   FIG. 28 and FIG. 29 are diagrams for explaining a modification of the third embodiment of the present invention. In the modification of the third embodiment, as shown in FIGS. 28 and 29, the second pressing member 85 that presses the paper 50 of the paper feed cassette 10 is the first end at the lower surface of the first flat portion 86a. A support portion 85f that is integrally joined to the flat portion 86a, extends obliquely toward the inclined portion 85b, and is joined to the inclined portion 85b is provided. Further, the support portion 85f is engaged with a pair of notch portions 85g provided on the inclined portion 85b and a pair of engaging portions 85h provided on the end portion of the support portion 85f, thereby causing the inclined portion 85b. It is joined to. In addition, although the point which the inclination part 85b inclines to the 1st flat part 86a side differs from the inclination direction of the inclination part 80b of the 2nd press member 80 of 3rd Embodiment, the effect similar to 3rd Embodiment is obtained. Obtainable.

なお、今回開示された実施形態は、すべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した実施形態の説明ではなく特許請求の範囲によって示され、さらに特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれる。   The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

たとえば、上記実施形態では、画像形成装置の一例としての昇華型プリンタの給紙カセットに本発明を適用した例を示したが、本発明はこれに限らず、昇華型プリンタ以外の画像形成装置の給紙カセットにも適用可能である。   For example, in the above-described embodiment, an example in which the present invention is applied to a paper feeding cassette of a sublimation printer as an example of an image forming apparatus has been described. However, the present invention is not limited to this, and an image forming apparatus other than a sublimation printer may be used. The present invention can also be applied to a paper cassette.

また、上記第１実施形態では、第２押圧部材６０の押圧部６０ｃの断面形状をＬ字形状とした例を示したが、本発明はこれに限らず、第２押圧部材６０の押圧部６０ｃの断面形状をＵ字形状としてもよい。   Moreover, in the said 1st Embodiment, although the cross-sectional shape of the press part 60c of the 2nd press member 60 showed the L-shape, this invention is not limited to this, The press part 60c of the 2nd press member 60 is shown. The cross-sectional shape may be U-shaped.

また、上記第１実施形態では、第２押圧部材６０の平坦部６０ａを粘着テープ１４（両面テープ）によって蓋部材１３の下面部１３ｂに取り付けられた例を示したが、本発明はこれに限らず、第２押圧部材６０の平坦部６０ａを接着剤などによって蓋部材１３の下面部１３ｂに取り付けてもよい。   Moreover, although the said 1st Embodiment showed the example where the flat part 60a of the 2nd press member 60 was attached to the lower surface part 13b of the cover member 13 with the adhesive tape 14 (double-sided tape), this invention is not limited to this. Instead, the flat portion 60a of the second pressing member 60 may be attached to the lower surface portion 13b of the lid member 13 with an adhesive or the like.

また、上記第１実施形態では、傾斜部６０ｂは、平坦部６０ａの実質的に中央部に接合させた例を示したが、本発明はこれに限らず、接合部６０ｄを境界として、傾斜部６０ｂと平坦部６０ａとのなす角度が鈍角になる一方領域６０ｅの面積が、傾斜部６０ｂと平坦部６０ａとのなす角度が鋭角になる他方領域６０ｆの面積よりも大きくなるように平坦部６０ａを分割する分割線において傾斜部６０ｂを平坦部６０ａと接合させてもよい。   Moreover, in the said 1st Embodiment, although the inclined part 60b showed the example joined to the substantially central part of the flat part 60a, this invention is not limited to this, It uses the junction part 60d as a boundary, and is an inclined part. The flat portion 60a is formed so that the area of the one region 60e where the angle between the flat portion 60a and the flat portion 60a is an obtuse angle is larger than the area of the other region 60f where the angle between the inclined portion 60b and the flat portion 60a is an acute angle. The inclined portion 60b may be joined to the flat portion 60a in the dividing line to be divided.

また、上記第１実施形態では、第２押圧部材６０を樹脂製として蓋部材１３の下面部１３ｂに取り付けた例を示したが、本発明はこれに限らず、第２押圧部材６０を金属製として蓋部材１３の下面部１３ｂに取り付けてもよい。   Moreover, in the said 1st Embodiment, although the example which attached the 2nd press member 60 to the lower surface part 13b of the cover member 13 as resin was shown, this invention is not restricted to this, The 2nd press member 60 is metal. It may be attached to the lower surface portion 13b of the lid member 13.

本発明の第１実施形態による給紙カセットの全体構成を示した斜視図である。1 is a perspective view illustrating an overall configuration of a paper feed cassette according to a first embodiment of the present invention. 図１に示した本発明の第１実施形態による給紙カセットが装着される昇華型プリンタの全体構成を示した斜視図である。FIG. 2 is a perspective view showing the overall configuration of the sublimation printer to which the paper feed cassette according to the first embodiment of the present invention shown in FIG. 1 is mounted. 図１に示した本発明の第１実施形態による給紙カセットおよび昇華型プリンタの内部構造を示した斜視図である。FIG. 2 is a perspective view showing an internal structure of a paper feed cassette and a sublimation printer according to the first embodiment of the present invention shown in FIG. 1. 図１に示した本発明の第１実施形態による給紙カセットおよび昇華型プリンタの内部構造を示した斜視図である。FIG. 2 is a perspective view showing an internal structure of a paper feed cassette and a sublimation printer according to the first embodiment of the present invention shown in FIG. 1. 図１に示した本発明の第１実施形態による給紙カセットおよび昇華型プリンタの断面図である。It is sectional drawing of the paper feed cassette and sublimation type printer by 1st Embodiment of this invention shown in FIG. 図１に示した本発明の第１実施形態による給紙カセットのカセット本体の平面図である。It is a top view of the cassette main body of the paper feed cassette by 1st Embodiment of this invention shown in FIG. 図１に示した本発明の第１実施形態による給紙カセットの分解斜視図である。FIG. 2 is an exploded perspective view of the paper feed cassette according to the first embodiment of the present invention shown in FIG. 1. 図１に示した本発明の第１実施形態による第２押圧部材の構造を示した斜視図である。It is the perspective view which showed the structure of the 2nd press member by 1st Embodiment of this invention shown in FIG. 図１に示した本発明の第１実施形態による第２押圧部材の構造を示した断面図である。It is sectional drawing which showed the structure of the 2nd press member by 1st Embodiment of this invention shown in FIG. 図１に示した本発明の第１実施形態による第２押圧部材の給紙カセットへの取り付け位置を示した平面図である。FIG. 3 is a plan view showing a mounting position of a second pressing member to the paper feed cassette according to the first embodiment of the present invention shown in FIG. 1. 図１に示した本発明の第１実施形態による第２押圧部材の押圧状態を示した断面図である。It is sectional drawing which showed the press state of the 2nd press member by 1st Embodiment of this invention shown in FIG. 図１に示した本発明の第１実施形態による給紙カセットおよび昇華型プリンタの給紙動作を説明するための断面図である。FIG. 5 is a cross-sectional view for explaining a paper feeding operation of the paper feeding cassette and the sublimation printer according to the first embodiment of the present invention shown in FIG. 1. 本発明の第１実施形態の変形例による第２押圧部材の給紙カセットへの取り付け構造を示した断面図である。It is sectional drawing which showed the attachment structure to the paper feed cassette of the 2nd press member by the modification of 1st Embodiment of this invention. 本発明の第１実施形態の変形例による第２押圧部材の給紙カセットへの取り付け方法を示した斜視図である。It is the perspective view which showed the attachment method to the paper feed cassette of the 2nd press member by the modification of 1st Embodiment of this invention. 本発明の第１実施形態の変形例による第２押圧部材の給紙カセットへの取り付け後の状態を示した斜視図である。It is the perspective view which showed the state after the attachment to the paper feed cassette of the 2nd press member by the modification of 1st Embodiment of this invention. 本発明の第２実施形態による第２押圧部材の構造を示した斜視図である。It is the perspective view which showed the structure of the 2nd press member by 2nd Embodiment of this invention. 本発明の第２実施形態による第２押圧部材の構造を示した平面図である。It is the top view which showed the structure of the 2nd press member by 2nd Embodiment of this invention. 本発明の第２実施形態による第２押圧部材の構造を示した断面図である。It is sectional drawing which showed the structure of the 2nd press member by 2nd Embodiment of this invention. 本発明の第２実施形態による第２押圧部材の給紙カセットへの取り付け位置を示した平面図である。It is the top view which showed the attachment position to the paper feed cassette of the 2nd press member by 2nd Embodiment of this invention. 本発明の第２実施形態による第２押圧部材の押圧状態を示した断面図である。It is sectional drawing which showed the press state of the 2nd press member by 2nd Embodiment of this invention. 本発明の第２実施形態の変形例による第２押圧部材の構造を示した斜視図である。It is the perspective view which showed the structure of the 2nd press member by the modification of 2nd Embodiment of this invention. 本発明の第２実施形態の変形例による第２押圧部材の構造を示した平面図である。It is the top view which showed the structure of the 2nd press member by the modification of 2nd Embodiment of this invention. 本発明の第３実施形態による第２押圧部材の構造を示した斜視図である。It is the perspective view which showed the structure of the 2nd press member by 3rd Embodiment of this invention. 本発明の第３実施形態による第２押圧部材の構造を示した平面図である。It is the top view which showed the structure of the 2nd press member by 3rd Embodiment of this invention. 本発明の第３実施形態による第２押圧部材の構造を示した断面図である。It is sectional drawing which showed the structure of the 2nd press member by 3rd Embodiment of this invention. 本発明の第３実施形態による第２押圧部材の給紙カセットへの取り付け位置を示した平面図である。It is the top view which showed the attachment position to the paper feed cassette of the 2nd press member by 3rd Embodiment of this invention. 本発明の第３実施形態による第２押圧部材の押圧状態を示した断面図である。It is sectional drawing which showed the press state of the 2nd press member by 3rd Embodiment of this invention. 本発明の第３実施形態の変形例による第２押圧部材の構造を示した斜視図である。It is the perspective view which showed the structure of the 2nd press member by the modification of 3rd Embodiment of this invention. 本発明の第３実施形態の変形例による第２押圧部材の構造を示した平面図である。It is the top view which showed the structure of the 2nd press member by the modification of 3rd Embodiment of this invention.

符号の説明Explanation of symbols

１１ カセット本体
１１ｋ 内底面
１１ｆ 第１押圧部材
１３ 蓋部材
１３ｂ 下面部（下面）
１４ 粘着テープ（接着手段）
２０ 昇華型プリンタ（画像形成装置）
２３ 給紙ローラ
５０ 用紙
６０、７０、７５、８０，８５ 第２押圧部材
６０ａ、７０ａ、７５ａ、８０ａ、８５ａ 平坦部
６０ｂ、７０ｂ、７５ｂ、８０ｂ、８５ｂ 傾斜部
６０ｃ、７０ｃ、７５ｃ、８０ｃ、８５ｃ 押圧部
６０ｄ、７０ｄ、７５ｄ、８０ｄ、８５ｄ 接合部（接合部分）
７１ａ、７６ａ、８１ａ、８６ａ 第１平坦部
７１ｂ、７６ｂ、８１ｂ、８６ｂ 第２平坦部
７０ｅ、７５ｅ、８０ｅ、８５ｅ 切り込み部
８０ｆ、８５ｆ 支持部 11 cassette body 11k inner bottom surface 11f first pressing member 13 lid member 13b lower surface (lower surface)
14 Adhesive tape (adhesive means)
20 Sublimation printer (image forming device)
23 Paper feed roller
50 Paper 60, 70, 75, 80, 85 Second pressing member 60a, 70a, 75a, 80a, 85a Flat part 60b, 70b, 75b, 80b, 85b Inclined part 60c, 70c, 75c, 80c, 85c Pressing part 60d, 70d, 75d, 80d, 85d Joint (joint part)
71a, 76a, 81a, 86a First flat part 71b, 76b, 81b, 86b Second flat part 70e, 75e, 80e, 85e Cut part 80f, 85f Support part

Claims (7)

給紙ローラを含む画像形成装置に装着されるとともに、用紙が収納されるカセット本体と、前記カセット本体の上部に配置された蓋部材と、前記用紙を収納した際に、前記カセット本体の内側の少なくとも一方側面部に設けられ、前記用紙の側面を押圧する第１押圧部材とを備えた給紙カセットにおいて、
前記蓋部材とは別体で設けられるとともに、前記蓋部材の下面に取り付けられ、前記カセット本体に収納された前記用紙の上面の幅方向の中央部近傍を押圧する第２押圧部材とをさらに備え、
前記第２押圧部材は、
前記蓋部材の下面に取り付けられる平坦部と、
前記平坦部の下面のうちの端部以外の領域で前記平坦部と一体的に接合され、前記カセット本体の内底面に向かって斜め方向に延びるとともに、少なくとも前記平坦部との接合部分が弾性変形可能な傾斜部と、
前記傾斜部の先端部分に設けられた押圧部とを一体的に含み、
前記蓋部材を前記カセット本体の上部に配置した際に、前記押圧部が前記カセット本体の内底面に当接され、
前記押圧部は、断面形状が実質的にＬ字形状を有するとともに、前記Ｌ字形状の角部で前記用紙を線上に押圧するように構成され
前記第２押圧部材の前記平坦部は、接着層によって前記蓋部材の下面に取り付けられ、
前記傾斜部は、前記平坦部の実質的に中央部に接合される、給紙カセット。 A cassette main body that is mounted on an image forming apparatus including a paper feed roller and that stores paper, a lid member that is disposed at an upper portion of the cassette main body, and an inner side of the cassette main body when the paper is stored. In a paper feed cassette provided with at least one side surface portion and a first pressing member that presses the side surface of the paper,
A second pressing member that is provided separately from the lid member and that is attached to the lower surface of the lid member and presses the vicinity of the central portion in the width direction of the upper surface of the paper stored in the cassette body. ,
The second pressing member is
A flat portion attached to the lower surface of the lid member;
The flat portion is integrally joined to the flat portion in a region other than the end portion of the flat portion, extends obliquely toward the inner bottom surface of the cassette body, and at least the joint portion with the flat portion is elastically deformed. Possible slopes,
And integrally including a pressing portion provided at the tip portion of the inclined portion,
When the lid member is disposed on the upper portion of the cassette body, the pressing portion is brought into contact with the inner bottom surface of the cassette body,
The pressing portion has a substantially L-shaped cross-section, and is configured to press the paper on a line with the L-shaped corner portion. The flat portion of the second pressing member is an adhesive layer. Is attached to the lower surface of the lid member by
The sheet feeding cassette, wherein the inclined portion is joined to a substantially central portion of the flat portion. 給紙ローラを含む画像形成装置に装着されるとともに、用紙が収納されるカセット本体と、
前記用紙を収納した際に、前記カセット本体の内側の少なくとも一方側面部に設けられ、前記用紙の側面を押圧する第１押圧部材と、
前記カセット本体の上部に配置された蓋部材と、
前記蓋部材とは別体で設けられるとともに、前記蓋部材の下面に取り付けられ、前記カセット本体に収納された前記用紙の上面の幅方向の中央部近傍を押圧する第２押圧部材とを備え、
前記第２押圧部材は、
前記蓋部材の下面に取り付けられる平坦部と、
前記平坦部の下面のうちの端部以外の領域で前記平坦部と一体的に接合され、前記カセット本体の内底面に向かって斜め方向に延びるとともに、少なくとも前記平坦部との接合部分が弾性変形可能な傾斜部と、
前記傾斜部の先端部分に設けられた押圧部とを一体的に含み、
前記蓋部材を前記カセット本体の上部に配置した際に、前記押圧部が前記カセット本体の内底面に当接される、給紙カセット。 A cassette body that is mounted on an image forming apparatus including a paper feed roller and stores paper;
A first pressing member that is provided on at least one side surface inside the cassette body and presses the side surface of the paper when storing the paper;
A lid member disposed at the top of the cassette body;
A second pressing member that is provided separately from the lid member, is attached to the lower surface of the lid member, and presses the vicinity of the central portion in the width direction of the upper surface of the paper stored in the cassette body,
The second pressing member is
A flat portion attached to the lower surface of the lid member;
The flat portion is integrally joined to the flat portion in a region other than the end portion of the flat portion, extends obliquely toward the inner bottom surface of the cassette body, and at least the joint portion with the flat portion is elastically deformed. Possible slopes,
And integrally including a pressing portion provided at the tip portion of the inclined portion,
A paper feeding cassette in which the pressing portion is brought into contact with an inner bottom surface of the cassette body when the lid member is disposed on an upper portion of the cassette body. 前記押圧部は、断面形状が実質的にＬ字形状を有するとともに、前記Ｌ字形状の角部で前記用紙を線状に押圧するように構成されている、請求項２に記載の給紙カセット。   The sheet feeding cassette according to claim 2, wherein the pressing portion has a substantially L-shaped cross section, and is configured to press the sheet linearly at the corners of the L shape. . 前記第２押圧部材の前記平坦部は、接着層によって前記蓋部材の下面に取り付けられる、請求項２または３に記載の給紙カセット。   The sheet feeding cassette according to claim 2 or 3, wherein the flat portion of the second pressing member is attached to a lower surface of the lid member by an adhesive layer. 前記傾斜部は、前記平坦部の実質的に中央部に接合されている、請求項２〜４のいずれか１項に記載の給紙カセット。   The sheet feeding cassette according to claim 2, wherein the inclined portion is joined to a substantially central portion of the flat portion. 前記第２押圧部材の前記平坦部は、前記傾斜部との接合線を境界線として左右にそれぞれ、第１平坦部と第２平坦部とを含み、
前記第２平坦部は、前記第１平坦部と前記傾斜部との接合部の所定領域に、Ｕ字状の切り込み部を設け、前記第１平坦部の前記Ｕ字状の切り込み部の内側の領域を、前記接合部の接合線に沿って折り返すことにより形成されている、請求項２〜４のいずれか１項に記載の給紙カセット。 The flat portion of the second pressing member includes a first flat portion and a second flat portion on the left and right, respectively, with a joint line with the inclined portion as a boundary line,
The second flat portion is provided with a U-shaped cut portion in a predetermined region of a joint portion between the first flat portion and the inclined portion, and the second flat portion is provided inside the U-shaped cut portion of the first flat portion. The sheet feeding cassette according to any one of claims 2 to 4, wherein the region is formed by folding back the region along a joining line of the joining portion. 前記第２押圧部材は、前記第１平坦部の端部で前記第１平坦部と一体的に連結され、前記傾斜部に向かって斜め方向に延びるとともに、前記傾斜部を支持するための支持部を含む、請求項６に記載の給紙カセット。   The second pressing member is integrally connected to the first flat portion at an end portion of the first flat portion, extends in an oblique direction toward the inclined portion, and supports the inclined portion. The paper feed cassette according to claim 6, comprising:
JP2006165661A 2006-06-15 2006-06-15 Paper feeding cassette Pending JP2007331890A (en)

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US11/797,201 US20070290433A1 (en) 2006-06-15 2007-05-01 Paper feed cassette

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Cited By (3)

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JP2009269694A (en) * 2008-05-02 2009-11-19 Alps Electric Co Ltd Printer
JP2017065827A (en) * 2015-09-28 2017-04-06 富士ゼロックス株式会社 Recording-medium feeding device and processing apparatus equipped with the same
JP2019167203A (en) * 2018-03-23 2019-10-03 富士通コンポーネント株式会社 Recording paper cassette and printer device

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KR100726433B1 (en) * 2005-11-25 2007-06-11 삼성전자주식회사 Media cassette
US8139315B2 (en) * 2008-06-27 2012-03-20 International Business Machines Corporation Storage slot for data storage cartridges of differing dimensions
US10377591B2 (en) * 2017-07-07 2019-08-13 Zebra Technologies Corporation Input handling for media processing devices

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009269694A (en) * 2008-05-02 2009-11-19 Alps Electric Co Ltd Printer
JP2017065827A (en) * 2015-09-28 2017-04-06 富士ゼロックス株式会社 Recording-medium feeding device and processing apparatus equipped with the same
JP2019167203A (en) * 2018-03-23 2019-10-03 富士通コンポーネント株式会社 Recording paper cassette and printer device
JP7148251B2 (en) 2018-03-23 2022-10-05 富士通コンポーネント株式会社 Recording paper cassette and printer device

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