JP2006143446A - Paper feeding tray, printer having the tray and installation method of lifting member to tray body - Google Patents

Paper feeding tray, printer having the tray and installation method of lifting member to tray body Download PDF

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JP2006143446A
JP2006143446A JP2004338615A JP2004338615A JP2006143446A JP 2006143446 A JP2006143446 A JP 2006143446A JP 2004338615 A JP2004338615 A JP 2004338615A JP 2004338615 A JP2004338615 A JP 2004338615A JP 2006143446 A JP2006143446 A JP 2006143446A
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claw
opening
lifting member
tray
tray body
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Shuichi Arimura
修一 有村
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper feeding tray capable of restraining a cost increase, by installing a lifting member without damaging a double feed preventive piece. <P>SOLUTION: This paper feeding tray 9 has a tray body 1 having the double feed preventive piece 11 on the paper extracting side, and the lifting member 2 arranged in a bottom part of the tray body 1 and lifting an extracting side end part of a paper bundle 6. The lifting member 2 has a first claw 21 for constituting a pivoting part by being hooked on the bottom part of the tray body 1, and a second claw 22 covered with the double feed preventive piece 11. A first opening 5 fitted with the first claw 21 and a second opening 50 connected to the first opening 5 and positioned on the side of the paper extracting side more than the first opening 5, are opened in the bottom part of the tray body 1, and a pressing piece 51 for forming clearance K fitted with the first claw 21, is arranged between the pressing piece and the edge of the second opening 50 in the second opening 50. The lifting member 2 is fitted and installed in the clearance K by inserting the first claw 21 into the first opening 5, sliding the first claw 21 fitted in the first opening 5 to the paper extracting side, and sliding to the side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、内部に用紙束を持ち上げる持上げ部材を設けた給紙トレイ及び該トレイを具えたプリンタ、持上げ部材のトレイ本体への取付け方法に関する。   The present invention relates to a paper feed tray provided with a lifting member that lifts a bundle of sheets therein, a printer including the tray, and a method of attaching the lifting member to a tray body.

画像等を印刷するプリンタには、給紙トレイがセットされる(例えば、特許文献１参照)。出願人も以前、図１１(a)、(b)に示す給紙トレイを提案している。これは、トレイ本体(１)内に、用紙束(６)が載置される持上げ部材(２)の一端部を枢支(２a)している。持上げ部材(２)は、リフタとも呼ばれ、バネ性を有する金属製である。枢支部(２a)は、持上げ部材(２)の先端部である第１爪(21)を、トレイ本体(１)の底面に開設された透孔(18)に嵌めて構成される。持上げ部材(２)は枢支部(２a)との反対側の端部に第２爪(22)を設け、該端部にて上向きにバネ(４)付勢されている。プリンタ内にてバネ(４)の上方には、トレイ本体(１)から用紙を引き出すローラ(95)が昇降可能に配備される。図１１(a)、(b)では左向きに用紙が引き出され、以下の記載では、トレイ本体(１)から用紙を引き出す方向を前方、反対側を後方とする。   A paper feed tray is set in a printer that prints an image or the like (see, for example, Patent Document 1). The applicant has also proposed a paper feed tray shown in FIGS. 11 (a) and 11 (b). This pivotally supports (2a) one end of the lifting member (2) on which the sheet bundle (6) is placed in the tray body (1). The lifting member (2) is also called a lifter and is made of a metal having a spring property. The pivot portion (2a) is configured by fitting a first claw (21), which is a tip portion of the lifting member (2), into a through hole (18) formed in the bottom surface of the tray body (1). The lifting member (2) is provided with a second claw (22) at the end opposite to the pivot (2a), and the spring (4) is biased upward at the end. A roller (95) for pulling out paper from the tray main body (1) is disposed above the spring (4) in the printer so as to be movable up and down. In FIGS. 11A and 11B, the paper is pulled out to the left. In the following description, the direction in which the paper is pulled out from the tray body (1) is the front, and the opposite side is the rear.

トレイ本体(１)の後端部には、用紙束(６)を押さえる蓋体(３)の一端部が枢支(３a)されている。用紙束(６)をトレイ本体(１)内に挿入するには、図１１(a)に示すように、蓋体(３)を枢支部(３a)を中心に回動させて開く。用紙束(６)をローラ(95)側からトレイ本体(１)内に挿入する。バネ(４)の付勢力は、用紙束(６)の重さに勝り、図１１(b)に示すように、蓋体(３)を閉じると、用紙束(６)が蓋体(３)に押される。ローラ(95)が下降して、最上位の用紙(61)がローラ(95)に接して引き出される。このとき、最上位の用紙(61)の下に位置する用紙(即ち、上から２番目以下の用紙)が、最上位の用紙(61)と一緒にローラ(95)に引き出されると、正確な印刷ができない。従って、トレイ本体(１)の前端部に、壁状の重送防止片(11)を設けている。最上位の用紙(61)の下に位置する用紙は前端縁が重送防止片(11)に当たり、最上位の用紙と一緒に引き出されることが阻止される。
持上げ部材(２)をトレイ本体(１)に装着するには、先ず図１２に示すように、トレイ本体(１)の底面にバネ(４)を予め置いておく。持上げ部材(２)をトレイ本体(１)内に挿入して、第１爪(21)を透孔(18)に嵌める。次に、持上げ部材(２)を上向きに弾性変形させて撓ませ、持上げ部材(２)の前後距離を縮め、第２爪(22)を重送防止片(11)の下側に潜り込ませる。持上げ部材(２)を弾性変形させていた力を解除し、持上げ部材(２)を弾性復帰させれば、図１１(a)に示すように、持上げ部材(２)がトレイ本体(１)に取り付けられる。 One end of a lid (3) for holding the sheet bundle (6) is pivotally supported (3a) at the rear end of the tray body (1). In order to insert the sheet bundle (6) into the tray body (1), as shown in FIG. 11 (a), the lid (3) is rotated around the pivot (3a) and opened. The sheet bundle (6) is inserted into the tray body (1) from the roller (95) side. The biasing force of the spring (4) is superior to the weight of the sheet bundle (6), and as shown in FIG. 11 (b), when the lid (3) is closed, the sheet bundle (6) is moved to the lid (3). Pressed. The roller (95) is lowered, and the uppermost sheet (61) is drawn out in contact with the roller (95). At this time, if the paper located below the uppermost paper (61) (that is, the second or lower paper from the top) is pulled out to the roller (95) together with the uppermost paper (61), an accurate Cannot print. Therefore, a wall-shaped double feed prevention piece (11) is provided at the front end of the tray body (1). The sheet positioned under the uppermost sheet (61) has a front edge that hits the double feed prevention piece (11) and is prevented from being pulled out together with the uppermost sheet.
In order to mount the lifting member (2) on the tray body (1), first, as shown in FIG. 12, a spring (4) is placed in advance on the bottom surface of the tray body (1). The lifting member (2) is inserted into the tray body (1), and the first claw (21) is fitted into the through hole (18). Next, the lifting member (2) is elastically deformed upward and bent, the distance between the front and rear of the lifting member (2) is shortened, and the second claw (22) is brought into the lower side of the double feed prevention piece (11). When the force that has elastically deformed the lifting member (2) is released and the lifting member (2) is elastically restored, the lifting member (2) is attached to the tray body (1) as shown in FIG. It is attached.

特開２００２−１９９７５号JP 2002-19975

上記の取付け方法では、持上げ部材(２)をトレイ本体(１)内に挿入する際に、持上げ部材(２)の撓ませ量が少ないと、第２爪(22)が重送防止片(11)の上面に当たり、該上面を傷つける虞れがある。後記の如く、用紙(61)に印刷する際には、用紙(61)の下面に印刷するから、用紙(61)の下面に接する重送防止片(11)の上面を傷つけると、用紙(61)の印刷面が傷つき、印刷がスムーズにできない虞れがある。また、持上げ部材(２)を撓ませて取り付けるから、持上げ部材(２)はバネ性を有する金属板から形成しなければならない。バネ性を有する金属板は、塑性変形し易い金属板に比して価格が高く、持上げ部材(２)のコスト上昇を招来していた。
本発明の目的は、重送防止片を傷つけることなく持上げ部材を装着でき、且つコスト上昇を抑えることができる給紙トレイを提供することにある。 In the above mounting method, when the lifting member (2) is inserted into the tray main body (1), if the bending amount of the lifting member (2) is small, the second pawl (22) is caused to prevent the double feed prevention piece (11 ) And may damage the top surface. As will be described later, when printing on the paper (61), since printing is performed on the lower surface of the paper (61), if the upper surface of the double feed prevention piece (11) in contact with the lower surface of the paper (61) is damaged, the paper (61 ) May be damaged and printing may not be smooth. Further, since the lifting member (2) is bent and attached, the lifting member (2) must be formed of a metal plate having a spring property. The metal plate having a spring property is more expensive than a metal plate that is easily plastically deformed, which causes an increase in the cost of the lifting member (2).
An object of the present invention is to provide a paper feed tray that can be equipped with a lifting member without damaging the double feed prevention piece and can suppress an increase in cost.

用紙引出し側に重送防止片(11)を具えたトレイ本体(１)と、該トレイ本体(１)の底部に配備されトレイ本体(１)内に収容される用紙束(６)の引出し側端部を持ち上げる持上げ部材(２)とを具え、
持上げ部材(２)は、トレイ本体(１)の底部に引掛かって枢支部を構成する第１爪(21)と、重送防止片(11)に覆われる第２爪(22)を具え、
トレイ本体(１)の底部には、第１爪(21)が嵌まる第１開口(５)及び該第１開口(５)に繋がり第１開口(５)よりも用紙引出し側の側方に位置する第２開口(50)が開設され、第２開口(50)内には、第２開口(50)の端縁との間に第１爪(21)が嵌まる隙間Ｋを形成する押さえ片(51)が設けられ、
持上げ部材(２)は、第１爪(21)が第１開口(５)に対向し、且つ第２爪(22)が重送防止片(11)から外れた第１位置と、第１開口(５)に対して用紙引出し側且つ側方に位置する隙間Ｋに第１爪(21)が嵌まり、第２爪(22)が重送防止片(11)に覆われる第２位置との間を移動可能に設けられている。 A tray body (1) provided with a multifeed prevention piece (11) on the paper drawer side, and a drawer side of a sheet bundle (6) disposed at the bottom of the tray body (1) and accommodated in the tray body (1) A lifting member (2) for lifting the end,
The lifting member (2) includes a first claw (21) that is hooked on the bottom of the tray body (1) to form a pivotal support, and a second claw (22) that is covered with the double feed prevention piece (11).
The bottom of the tray body (1) is connected to the first opening (5) into which the first claw (21) is fitted, and to the first opening (5), to the side closer to the paper drawer than the first opening (5). A second opening (50) is formed, and a presser is formed in the second opening (50) to form a gap K in which the first claw (21) is fitted between the end of the second opening (50). A piece (51) is provided,
The lifting member (2) has a first position in which the first claw (21) faces the first opening (5) and the second claw (22) is disengaged from the double feed prevention piece (11), and the first opening (5) The first claw (21) is fitted in the gap K located on the paper drawer side and the side, and the second claw (22) is covered with the second position where the double feed prevention piece (11) is covered. It is provided so that it can move between them.

持上げ部材(２)をトレイ本体(１)に取り付けるには、先ず第１爪(21)が第１開口(５)に対向し、且つ第２爪(22)が重送防止片(11)から外れた第１位置にまで持上げ部材(２)を搬送する。次に、第１爪(21)を第１開口(５)に挿入する。この後、第１開口(５)に嵌めた第１爪(21)を用紙引出し側にスライドさせ、且つ側方にスライドさせて隙間Ｋに嵌める。このとき、第２爪(22)は重送防止片(11)に覆われる。
このように、本発明にあっては、持上げ部材(２)をトレイ本体(１)の上から挿入し、トレイ本体(１)の底面に沿ってスライドさせて取り付けるから、従来のように、持上げ部材(２)を撓ませる必要はない。従って、重送防止片(11)を傷つける虞れはなく、用紙の印刷面を傷つける虞れはない。
また、持上げ部材(２)を撓ませる必要がないから、持上げ部材(２)を従来よりも安価な塑性変形する金属板から形成することができ、コスト上昇を抑えることができる。 In order to attach the lifting member (2) to the tray body (1), the first claw (21) first faces the first opening (5), and the second claw (22) extends from the double feed prevention piece (11). The lifting member (2) is transported to the removed first position. Next, the first claw (21) is inserted into the first opening (5). Thereafter, the first claw (21) fitted in the first opening (5) is slid to the paper drawer side and slid to the side to fit in the gap K. At this time, the second claw (22) is covered with the double feed prevention piece (11).
Thus, in the present invention, the lifting member (2) is inserted from above the tray main body (1) and slid along the bottom surface of the tray main body (1). It is not necessary to bend the member (2). Therefore, there is no possibility of damaging the double feed prevention piece (11), and there is no possibility of damaging the printing surface of the paper.
Moreover, since it is not necessary to bend the lifting member (2), the lifting member (2) can be formed from a metal plate that is plastically deformed at a lower cost than conventional ones, and an increase in cost can be suppressed.

以下、本発明の一実施例を図を用いて、詳述する。
プリンタ概略
図１は、本発明の給紙トレイ(９)が装着されるプリンタ(90)の概略図である。プリンタ(90)内には、給紙トレイ(９)及びカートリッジ(91)が着脱可能に装着される。カートリッジ(91)内には、インクシート(92)が巻き取られた供給ローラ(93)及びインクシート(92)を巻き取る巻取りローラ(94)が配備される。
印刷時には、給紙トレイ(９)内の最上位の用紙(61)は、ローラ(95)により１枚ずつ取り出されて、プラテンローラ(96)に巻き付けられる。該プラテンローラ(96)を回転して、インクシート(92)をサーマルヘッド(97)にて加熱しながら巻取りローラ(94)によって搬送し、イエロー、マゼンタ、シアンの画像情報を順に用紙(61)に印刷する。印刷が完了すると、用紙(61)は搬送ローラ(98)により、プリンタ(90)の上端部に形成された排出部(99)から排出される。従って、給紙トレイ(９)内の用紙(61)の下面に画像が印刷される。本例にあっては、重送防止片(11)によって用紙(61)の下面が傷つくことを防ぐ点に特徴がある。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic diagram of a printer (90) to which a paper feed tray (9) of the present invention is mounted. In the printer (90), a paper feed tray (9) and a cartridge (91) are detachably mounted. In the cartridge (91), a supply roller (93) around which the ink sheet (92) is taken up and a take-up roller (94) around which the ink sheet (92) is taken up are provided.
At the time of printing, the uppermost sheet (61) in the sheet feeding tray (9) is taken out one by one by the roller (95) and wound around the platen roller (96). The platen roller (96) is rotated, and the ink sheet (92) is conveyed by the take-up roller (94) while being heated by the thermal head (97), and image information of yellow, magenta, and cyan is sequentially supplied to the paper (61 ) To print. When printing is completed, the sheet (61) is discharged from the discharge section (99) formed at the upper end of the printer (90) by the transport roller (98). Accordingly, an image is printed on the lower surface of the sheet (61) in the sheet feeding tray (9). This example is characterized in that the lower surface of the sheet (61) is prevented from being damaged by the double feed prevention piece (11).

図２は、給紙トレイ(９)の分解斜視図である。給紙トレイ(９)は、トレイ本体(１)と、該トレイ本体(１)の底部に配備されトレイ本体(１)内に収容される用紙束(６)の引出し側端部を持ち上げる持上げ部材(２)と、該持上げ部材(２)の前端部を上向きに付勢するバネ(４)と、一端部がトレイ本体(１)の後端部に枢支され、用紙引出し側が自由端となっている蓋体(３)とによって構成される。蓋体(３)は、金属板を折曲して、蓋板(30)と該蓋板(30)の左右両側に位置する側片(32)(32)を一体に具え、側片(32)の後端部内側から枢支部となる丸軸(33)を突出している。
持上げ部材(２)は、前後に延びた略矩形の板体であって、後端部両側及び前端部両側に第１爪(21)(21)、第２爪(22)(22)を突設している。持上げ部材(２)は、塑性変形可能な金属板から形成される。第１爪(21)は下向きに延びた垂直部(21a)と、該垂直部(21a)の下端から斜め下向きに延びた掛かり部(21b)を一体に具えており、掛かり部(21b)がトレイ本体(１)の下面に引掛かる。持上げ部材(２)の前端部裏側からはバーリング加工により円形の突起(23)(23)が突出し、該突起(23)に持上げ部材(２)を上向きに付勢するバネ(４)が嵌まる。
トレイ本体(１)は、樹脂にて成形され、底板(10)の周縁部に壁を形成し、両側壁に蓋体(３)の丸軸(33)が嵌まる孔(19)が開設されている。トレイ本体(１)は、前端部の壁が重送防止片(11)となり、底板(10)にバネ(４)が載置される凹面(12)が設けられている。前記ローラ(95)は重送防止片(11)の上方に配備される。 FIG. 2 is an exploded perspective view of the paper feed tray (9). The paper feed tray (9) includes a tray main body (1) and a lifting member that is arranged at the bottom of the tray main body (1) and lifts the drawer side end of the sheet bundle (6) accommodated in the tray main body (1). (2), a spring (4) for urging the front end of the lifting member (2) upward, one end pivotally supported by the rear end of the tray body (1), and the paper drawer side is the free end And a lid (3). The lid (3) is formed by bending a metal plate and integrally including a lid plate (30) and side pieces (32) and (32) located on the left and right sides of the lid plate (30). ) Protrudes from the inner side of the rear end of the round shaft (33), which is a pivotal support.
The lifting member (2) is a substantially rectangular plate extending in the front-rear direction. The first claw (21) (21) and the second claw (22) (22) protrude from both sides of the rear end portion and both sides of the front end portion. Has been established. The lifting member (2) is formed from a plastically deformable metal plate. The first claw (21) integrally includes a vertical portion (21a) extending downward and a hook portion (21b) extending obliquely downward from the lower end of the vertical portion (21a). It catches on the lower surface of the tray body (1). Circular protrusions (23) and (23) protrude from the rear side of the front end of the lifting member (2) by burring, and a spring (4) for urging the lifting member (2) upward is fitted into the protrusion (23). .
The tray body (1) is molded from resin, and a wall (19) is formed on the peripheral edge of the bottom plate (10), and the round shaft (33) of the lid (3) is fitted on both side walls. ing. The tray main body (1) is provided with a concave surface (12) on which a spring (4) is placed on a bottom plate (10) with a wall at the front end serving as a double feed prevention piece (11). The roller (95) is disposed above the double feed prevention piece (11).

図３は、トレイ本体(１)の平面図である。トレイ本体(１)の底板(10)の後端部両側には、第１開口(５)及び該第１開口(５)に繋がった第２開口(50)が開設されている。図４は、第１開口(５)及び第２開口(50)の拡大平面図である。第２開口(50)は、第１開口(５)の側方にて第１開口(５)の前端側に位置し、第２開口(50)内には、前後に延びた押さえ片(51)が設けられている。押さえ片(51)の先端と、第２開口(50)の後端縁との間には、隙間Ｋが設けられる。後記の如く、第１爪(21)は隙間Ｋに嵌まって、前後移動を規制される。即ち、隙間Ｋは、第１開口(５)に対して用紙引出し側且つ側方に位置する。
図５は、重送防止片(11)を図３のＡ方向から見た図である。重送防止片(11)には、第１凹部(13)及び該第１凹部(13)の側方に位置して該第１凹部(13)に繋がった第２凹部(14)が設けられている。第２凹部(14)は第１凹部(13)よりも縦長で、持上げ部材(２)をトレイ本体(１)に装着する際に、前記第２爪(22)は第１凹部(13)に嵌まってから、横にスライドして第２凹部(14)に嵌まる。第２凹部(14)の横幅は、第２爪(22)の横幅よりも稍広く、第２爪(22)は第２凹部(14)内を昇降可能に設けられる。 FIG. 3 is a plan view of the tray body (1). A first opening (5) and a second opening (50) connected to the first opening (5) are formed on both sides of the rear end portion of the bottom plate (10) of the tray body (1). FIG. 4 is an enlarged plan view of the first opening (5) and the second opening (50). The second opening (50) is located on the front end side of the first opening (5) on the side of the first opening (5), and in the second opening (50), a pressing piece (51 ) Is provided. A gap K is provided between the front end of the pressing piece (51) and the rear end edge of the second opening (50). As will be described later, the first claw (21) is fitted in the gap K and is restricted from moving back and forth. In other words, the gap K is located on the paper drawer side and the side with respect to the first opening (5).
FIG. 5 is a view of the double feed prevention piece (11) seen from the direction A in FIG. The double feed prevention piece (11) is provided with a first recess (13) and a second recess (14) which is located on the side of the first recess (13) and connected to the first recess (13). ing. The second recess (14) is longer than the first recess (13), and when the lifting member (2) is attached to the tray body (1), the second claw (22) is formed in the first recess (13). After fitting, it slides sideways and fits into the second recess (14). The lateral width of the second recess (14) is much wider than the lateral width of the second claw (22), and the second claw (22) is provided so as to be able to move up and down in the second recess (14).

(持上げ部材の装着手順)
持上げ部材(２)をトレイ本体(１)に取り付けるには、以下の手順で行う。
先ず、予めトレイ本体(１)の底板(10)の凹面(12)にバネ(４)を載せる。次に図３に示すように、第１爪(21)が第１開口(５)に被さるように、持上げ部材(２)をトレイ本体(１)の底板(10)の上方にまで搬送する。このとき、第２爪(22)は重送防止片(11)に被さらず、第１凹部(13)に対向する。このときの持上げ部材(２)の位置を、第１位置と呼ぶ。第１爪(21)を第１開口(５)内に挿入し、突起(23)にバネ(４)の上端を嵌める。
次に、図６に示すように、持上げ部材(２)の前端部をバネ(４)に抗して手で押さえながら、持上げ部材(２)を前方にスライドさせる(図３のＢ方向)。第２爪(22)が第１凹部(13)に嵌まり、押さえられたバネ(４)が前に変形する。バネ(４)は突起(23)及び凹面(12)に嵌まっているから、変形しても持上げ部材(２)から外れない。 (Installation procedure of lifting member)
The lifting member (2) is attached to the tray body (1) by the following procedure.
First, the spring (4) is placed on the concave surface (12) of the bottom plate (10) of the tray body (1) in advance. Next, as shown in FIG. 3, the lifting member (2) is conveyed above the bottom plate (10) of the tray body (1) so that the first pawl (21) covers the first opening (5). At this time, the second claw (22) does not cover the double feed prevention piece (11) but faces the first recess (13). The position of the lifting member (2) at this time is referred to as a first position. The first claw (21) is inserted into the first opening (5), and the upper end of the spring (4) is fitted into the protrusion (23).
Next, as shown in FIG. 6, the lifting member (2) is slid forward (B direction in FIG. 3) while holding the front end of the lifting member (2) against the spring (4) by hand. The second claw (22) is fitted into the first recess (13), and the pressed spring (4) is deformed forward. Since the spring (4) is fitted into the protrusion (23) and the concave surface (12), it cannot be detached from the lifting member (2) even if it is deformed.

次に、持上げ部材(２)を第２開口(50)に向けて、横にスライドさせる(図３のＣ方向)。図７に示すように、第１爪(21)は垂直部(21a)が隙間Ｋに嵌まり、掛かり部(21b)が第１開口(５)の側方にてトレイ本体(１)の底板(10)の下側に位置する。第１爪(21)が隙間Ｋに嵌まることにより、持上げ部材(２)は前後移動が規制される。第２爪(22)は第１凹部(13)から出て第２凹部(14)内に位置する。このときの持上げ部材(２)の位置を、第２位置と呼ぶ。
図８は、トレイ本体(１)を上下逆にして示す側面断面図である。持上げ部材(２)の前端部から手を離すと、バネ(４)により持上げ部材(２)の前端部が持ち上がり、第２爪(22)が第２凹部(14)の上縁部に接する。前記の如く、第２凹部(14)の横幅は、第２爪(22)の横幅よりも稍広く、第２爪(22)は左右移動が規制される。 Next, the lifting member (2) is slid sideways toward the second opening (50) (direction C in FIG. 3). As shown in FIG. 7, the vertical portion (21a) of the first claw (21) fits into the gap K, and the hook portion (21b) is located on the side of the first opening (5) and the bottom plate of the tray body (1). (10) Located below. When the first claw (21) is fitted into the gap K, the lifting member (2) is restricted from moving back and forth. The second claw (22) exits from the first recess (13) and is located in the second recess (14). The position of the lifting member (2) at this time is referred to as a second position.
FIG. 8 is a side sectional view showing the tray body (1) upside down. When the hand is released from the front end of the lifting member (2), the front end of the lifting member (2) is lifted by the spring (4), and the second claw (22) is in contact with the upper edge of the second recess (14). As described above, the lateral width of the second recess (14) is much wider than the lateral width of the second claw (22), and the second claw (22) is restricted from moving left and right.

図９は、図８の状態にある第１爪(21)の斜視図であり、トレイ本体(１)を上下逆にしている。即ち、トレイ本体(１)を裏から見ている。
トレイ本体(１)の底板(10)の下面にて、第１爪(21)の掛かり部(21b)が対向する箇所には、第３凹部(15)が形成されており、該第３凹部(15)の幅は、掛かり部(21b)の幅に略等しい。持上げ部材(２)をトレイ本体(１)に取り付けた後は、図１０に示すように、掛かり部(21b)を折り曲げて、第３凹部(15)内に嵌める。前記の如く、持上げ部材(２)は、塑性変形可能な金属板から形成されているから、掛かり部(21b)は簡単に折り曲がって塑性変形し、第３凹部(15)内に嵌まった状態を保つ。これによって、第１爪(21)は左右移動が規制され、前記の如く、第２爪(22)が第２凹部(14)に嵌まることと合わせて、持上げ部材(２)は左右移動が規制される。給紙トレイ(９)を落下させても、落下の衝撃によって、持上げ部材(２)がトレイ本体(１)に対してズレることはない。 FIG. 9 is a perspective view of the first claw (21) in the state of FIG. 8, and the tray body (1) is turned upside down. That is, the tray body (1) is viewed from the back.
A third recess (15) is formed on the lower surface of the bottom plate (10) of the tray body (1) at a location where the hook (21b) of the first claw (21) faces, and the third recess (15) is formed. The width of (15) is substantially equal to the width of the hanging portion (21b). After the lifting member (2) is attached to the tray body (1), as shown in FIG. 10, the hooking portion (21b) is bent and fitted into the third recess (15). As described above, since the lifting member (2) is formed of a plastically deformable metal plate, the hook portion (21b) is easily bent and plastically deformed, and is fitted into the third recess (15). Keep state. As a result, the first claw (21) is restricted from moving left and right. As described above, the second claw (22) is fitted into the second recess (14), and the lifting member (2) is moved from side to side. Be regulated. Even if the paper feed tray (9) is dropped, the lifting member (2) is not displaced from the tray body (1) due to the impact of the drop.

本例の効果
本例にあっては、持上げ部材(２)をトレイ本体(１)の上から挿入し、底板(10)に沿ってスライドさせて取り付けるから、従来のように、持上げ部材(２)を撓ませる必要はなく、重送防止片(11)を傷つける虞れはない。従って、用紙の印刷面を傷つける虞れはない。
また、持上げ部材(２)を撓ませる必要がないから、持上げ部材(２)を従来よりも安価な塑性変形する金属板から形成することができ、コスト上昇を抑えることができる。 Advantages of this example In this example, the lifting member (2) is inserted from above the tray body (1) and is slid along the bottom plate (10). ) Does not need to bend, and there is no possibility of damaging the double feed prevention piece (11). Therefore, there is no possibility of damaging the printing surface of the paper.
Moreover, since it is not necessary to bend the lifting member (2), the lifting member (2) can be formed from a metal plate that is plastically deformed at a lower cost than conventional ones, and an increase in cost can be suppressed.

上記実施例の説明は、本発明を説明するためのものであって、特許請求の範囲に記載の発明を限定し、或は範囲を減縮する様に解すべきではない。又、本発明の各部構成は上記実施例に限らず、特許請求の範囲に記載の技術的範囲内で種々の変形が可能であることは勿論である。
上記例では、第１爪(21)、第２爪(22)は夫々２つ設けられているが、２つに限定するものではない。 The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.
In the above example, two first claws (21) and two second claws (22) are provided, but the number is not limited to two.

給紙トレイが装着されるプリンタの概略図である。2 is a schematic diagram of a printer to which a paper feed tray is mounted. FIG. 給紙トレイの分解斜視図である。It is an exploded perspective view of a paper feed tray. 第１位置に於けるトレイ本体及び持上げ部材の平面図である。It is a top view of the tray main body and the lifting member in the first position. 第１開口及び第２開口の拡大平面図である。It is an enlarged plan view of the first opening and the second opening. 重送防止片を図３のＡ方向から見た図である。It is the figure which looked at the double feed prevention piece from the A direction of FIG. トレイ本体の側面断面図である。It is side surface sectional drawing of a tray main body. 第２位置に於けるトレイ本体及び持上げ部材の平面図である。It is a top view of the tray main body and lifting member in a 2nd position. トレイ本体を上下逆にして示す側面断面図である。It is side surface sectional drawing which shows a tray main body upside down. 図８の状態にある第１爪の斜視図である。It is a perspective view of the 1st nail | claw in the state of FIG. 掛かり部が第３凹部内に嵌まった状態を示す側面断面図である。It is side surface sectional drawing which shows the state which the hook part fit in the 3rd recessed part. (a)、(b)は、従来の給紙トレイの側面断面図である。(a), (b) is side sectional drawing of the conventional paper feed tray. 従来の持上げ部材をトレイ本体に取り付ける工程を示す側面図である。It is a side view which shows the process of attaching the conventional lifting member to a tray main body.

符号の説明Explanation of symbols

(１) トレイ本体
(２) 持上げ部材
(５) 第１開口
(６) 用紙束
(11) 重送防止片
(13) 第１凹部
(14) 第２凹部
(21) 第１爪
(22) 第２爪
(50) 第２開口
(51) 押さえ片
(９) 給紙トレイ (1) Tray body
(2) Lifting member
(5) First opening
(6) Paper bundle
(11) Double feed prevention piece
(13) First recess
(14) Second recess
(21) First nail
(22) Second nail
(50) Second opening
(51) Presser piece
(9) Paper tray

Claims (6)

用紙引出し側に重送防止片(11)を具えたトレイ本体(１)と、該トレイ本体(１)の底部に配備されトレイ本体(１)内に収容される用紙束(６)の引出し側端部を持ち上げる持上げ部材(２)とを具え、
持上げ部材(２)は、トレイ本体(１)の底部に引掛かって枢支部を構成する第１爪(21)と、重送防止片(11)に覆われる第２爪(22)を具え、
トレイ本体(１)の底部には、第１爪(21)が嵌まる第１開口(５)及び該第１開口(５)に繋がり第１開口(５)よりも用紙引出し側の側方に位置する第２開口(50)が開設され、第２開口(50)内には、第２開口(50)の端縁との間に第１爪(21)が嵌まる隙間Ｋを形成する押さえ片(51)が設けられ、
持上げ部材(２)は、第１爪(21)が第１開口(５)に対向し、且つ第２爪(22)が重送防止片(11)から外れた第１位置と、第１開口(５)に対して用紙引出し側且つ側方に位置する隙間Ｋに第１爪(21)が嵌まり、第２爪(22)が重送防止片(11)に覆われる第２位置との間を移動可能に設けられたことを特徴とする給紙トレイ。 A tray body (1) provided with a multifeed prevention piece (11) on the paper drawer side, and a drawer side of a sheet bundle (6) disposed at the bottom of the tray body (1) and accommodated in the tray body (1) A lifting member (2) for lifting the end,
The lifting member (2) includes a first claw (21) that is hooked on the bottom of the tray body (1) to form a pivotal support, and a second claw (22) that is covered with the double feed prevention piece (11).
The bottom of the tray body (1) is connected to the first opening (5) into which the first claw (21) is fitted, and to the first opening (5), to the side closer to the paper drawer than the first opening (5). A second opening (50) is formed, and a presser is formed in the second opening (50) to form a gap K in which the first claw (21) is fitted between the end of the second opening (50). A piece (51) is provided,
The lifting member (2) has a first position in which the first claw (21) faces the first opening (5) and the second claw (22) is disengaged from the double feed prevention piece (11), and the first opening (5) The first claw (21) is fitted in the gap K located on the paper drawer side and the side, and the second claw (22) is covered with the second position where the double feed prevention piece (11) is covered. A paper feed tray characterized by being provided so as to be movable between them. 重送防止片(11)には、第１位置にある持上げ部材(２)の第２爪(22)が対向する第１凹部(13)と、該第１凹部(13)に繋がり第２位置にある第２爪(22)が嵌まる第２凹部(14)が設けられた請求項１に記載の給紙トレイ。 The double feed prevention piece (11) is connected to the first recess (13) opposed to the second claw (22) of the lifting member (2) in the first position, and the second position is connected to the first recess (13). The paper feed tray according to claim 1, further comprising a second recess (14) into which the second claw (22) is fitted. 第２凹部(14)の横幅は、第２爪(22)の横幅よりも稍広く形成され、トレイ本体(１)の底板の下面には、第２位置にある第２爪(22)が側方移動を規制された状態で嵌まる第３凹部(15)が設けられた請求項１又は２に記載の給紙トレイ。 The lateral width of the second recess (14) is formed wider than the lateral width of the second claw (22), and the second claw (22) in the second position is located on the lower surface of the bottom plate of the tray body (1). The paper feed tray according to claim 1 or 2, further comprising a third recess (15) that fits in a state in which the movement is restricted. 持上げ部材(２)は、用紙引出し側端部がバネ(４)によって、上向きに付勢され、持上げ部材(２)の下面にはバネ(４)が嵌まる突起(23)が形成された請求項１乃至３の何れかに記載の給紙トレイ。 The lifting member (2) is biased upward by the spring (4) at the end of the paper drawer side, and a protrusion (23) on which the spring (4) is fitted is formed on the lower surface of the lifting member (2). Item 4. The paper feed tray according to any one of Items 1 to 3. 請求項１乃至４の何れかに記載の給紙トレイを具えたプリンタ。 A printer comprising the paper feed tray according to claim 1. 用紙引出し側に重送防止片(11)を具えたトレイ本体(１)と、該トレイ本体(１)の底部に配備されトレイ本体(１)内に収容される用紙束(６)の引出し側端部を持ち上げる持上げ部材(２)とを具え、
持上げ部材(２)は、トレイ本体(１)の底部に引掛かって枢支部を構成する第１爪(21)と、重送防止片(11)に覆われる第２爪(22)を具え、
トレイ本体(１)の底部には、第１爪(21)が嵌まる第１開口(５)及び該第１開口(５)に繋がり第１開口(５)よりも用紙引出し側の側方に位置する第２開口(50)が開設され、第２開口(50)内には、第２開口(50)の端縁との間に第１爪(21)が嵌まる隙間Ｋを形成する押さえ片(51)が設けられた給紙トレイ(９)の持上げ部材(２)をトレイ本体(１)に取り付ける方法であって、
持上げ部材(２)を、第１爪(21)が第１開口(５)に対向し、且つ第２爪(22)が重送防止片(11)から外れた第１位置に搬送する工程と、
第１爪(21)を第１開口(５)に挿入する工程と、
第１開口(５)に嵌めた第１爪(21)を用紙引出し側にスライドさせ、且つ側方にスライドさせて隙間Ｋに嵌め、第２爪(22)が重送防止片(11)に覆われる第２位置にまで持上げ部材(２)を搬送する工程を有する給紙トレイの持上げ部材をトレイ本体に取り付ける方法。 A tray body (1) provided with a multifeed prevention piece (11) on the paper drawer side, and a drawer side of a sheet bundle (6) disposed at the bottom of the tray body (1) and accommodated in the tray body (1) A lifting member (2) for lifting the end,
The lifting member (2) includes a first claw (21) that is hooked on the bottom of the tray body (1) to form a pivotal support, and a second claw (22) that is covered with the double feed prevention piece (11).
The bottom of the tray body (1) is connected to the first opening (5) into which the first claw (21) is fitted, and to the first opening (5), to the side closer to the paper drawer than the first opening (5). A second opening (50) is formed, and a presser is formed in the second opening (50) to form a gap K in which the first claw (21) is fitted between the end of the second opening (50). A method of attaching a lifting member (2) of a paper feed tray (9) provided with a piece (51) to a tray body (1),
Conveying the lifting member (2) to a first position where the first claw (21) faces the first opening (5) and the second claw (22) is disengaged from the double feed prevention piece (11); ,
Inserting the first claw (21) into the first opening (5);
The first claw (21) fitted in the first opening (5) is slid to the paper drawer side and slid to the side to fit in the gap K, and the second claw (22) is attached to the double feed prevention piece (11). A method of attaching a lifting member of a paper feed tray to a tray body, the method including transporting the lifting member (2) to a second position to be covered.
JP2004338615A 2004-11-24 2004-11-24 Paper feeding tray, printer having the tray and installation method of lifting member to tray body Withdrawn JP2006143446A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007145482A (en) * 2005-11-28 2007-06-14 Funai Electric Co Ltd Image forming device
US8096549B2 (en) 2006-08-22 2012-01-17 Funai Electric Co., Ltd. Image generating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007145482A (en) * 2005-11-28 2007-06-14 Funai Electric Co Ltd Image forming device
US8096549B2 (en) 2006-08-22 2012-01-17 Funai Electric Co., Ltd. Image generating apparatus

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