JP2579505B2 - Support mechanism - Google Patents
Support mechanismInfo
- Publication number
- JP2579505B2 JP2579505B2 JP62300078A JP30007887A JP2579505B2 JP 2579505 B2 JP2579505 B2 JP 2579505B2 JP 62300078 A JP62300078 A JP 62300078A JP 30007887 A JP30007887 A JP 30007887A JP 2579505 B2 JP2579505 B2 JP 2579505B2
- Authority
- JP
- Japan
- Prior art keywords
- support
- transparent plate
- reading
- pair
- support members
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Facsimile Scanning Arrangements (AREA)
Description
【発明の詳細な説明】 <技術分野> 本発明は、電荷結合素子(CCD)の如き原稿読取り手
段等を支持する支持機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support mechanism for supporting a document reading unit such as a charge-coupled device (CCD).
<従来技術> 一般に、ファクシミリ,デジタル複写機等の画像形成
装置は、原稿を読取る読取り部と記録紙に画像を形成す
る記録部を装備し、この読取り部の一例として、例え
ば、原稿が載置される透明板、透明板上の原稿を読取る
読取り手段及び読取り手段を透明板に沿って移動せしめ
る支持機構を具備するものがある。かかる支持機構は、
一対の基板間に装着された支持ロッド、支持ロッドに移
動自在に装着された滑動部材、滑動部材に弾性部材を介
して支持された取付部材及び取付部材に回転自在に装着
され且つ弾性部材の作用によって透明板に押圧されるコ
ロを備えており、読取り手段は上記取付部材に取付けら
れている。かかる読取り装置では、滑動部材を支持ロッ
ドに沿って移動せしめることによって、弾性部材及び取
付部材を介して読取り手段が透明板に沿て移動される。
読取り手段の移動時には、弾性部材の作用によって押圧
されているコロが上記移動に伴って従動回転して移動
し、このコロの作用によって透明板と取付部材の間隔が
一定に保持され、かくして読取り手段によって透明板上
の原稿の読取りが所要の通り遂行される。<Prior Art> Generally, an image forming apparatus such as a facsimile or a digital copying machine is provided with a reading unit for reading a document and a recording unit for forming an image on a recording sheet. As an example of the reading unit, for example, a document is placed. And a reading mechanism for reading the original on the transparent plate, and a supporting mechanism for moving the reading means along the transparent plate. Such a support mechanism is
A support rod mounted between a pair of substrates, a sliding member movably mounted on the support rod, a mounting member supported on the sliding member via an elastic member, and a function of the elastic member rotatably mounted on the mounting member. The reading means is mounted on the mounting member. In such a reader, the reading means is moved along the transparent plate via the elastic member and the mounting member by moving the sliding member along the support rod.
At the time of movement of the reading means, the roller pressed by the action of the elastic member is rotated by the movement following the movement and moves, whereby the distance between the transparent plate and the mounting member is kept constant by the action of the roller. Thus, the reading of the original on the transparent plate is performed as required.
しかしながら、上述した形態の支持機構では、次の通
りの解決すべき問題が存在する。即ち、取付部材(例え
ば読取り手段が取付けられる)の移動の際には滑動部材
及びコロが夫々支持ロッド及び透明板に接触して移動
し、それ故に、移動時における接触個所が比較的多いこ
とに起因して振動等が発生し易く、読取り手段を支持す
る場合にはこの読取り手段によって原稿を正確に読取る
ことが困難になる。However, the above-described support mechanism has the following problems to be solved. That is, when the mounting member (for example, the reading means is mounted) is moved, the sliding member and the roller move in contact with the support rod and the transparent plate, respectively. As a result, vibrations and the like are likely to occur, and when the reading means is supported, it becomes difficult to read the document accurately by the reading means.
<発明の目的> 本発明は上記事実に鑑みてなされたものであり、その
主目的は、原稿読取り手段等が取付けられる滑動部材の
移動時に発生する振動等を抑えて滑動部材をスムーズに
移動せしめることができる、優れた支持機構を提供する
ことである。<Object of the Invention> The present invention has been made in view of the above-mentioned facts, and a main object of the present invention is to suppress a vibration or the like generated when a sliding member to which a document reading means or the like is attached is moved and to smoothly move the sliding member. To provide an excellent support mechanism.
〈発明の要約〉 本発明によれば、原稿が載置される透明板に沿って、
原稿面の情報を検知する検知手段又は原稿面からの反射
光を所要の通り導く光学手段を所要の通り移動せしめる
支持機構にして、該検知手段又は該光学手段の移動方向
に間隔置いて配設され該透明板に近接及び離隔する方向
に対して実質上垂直な方向に移動自在に装着された夫々
一対の支持部材と、該夫々一対の支持部材の各々を該透
明板の基準面に向けて偏倚せしめる偏倚手段と、該夫々
一対の支持部材間に各々連結された各支持ロッドと、該
各支持ロッドにその軸線方向に滑動自在に支持され且つ
該検知手段又は該光学手段が装着された滑動部材とを具
備し、該偏倚手段の作用によって該夫々一対の支持部材
の各上端面を該透明板の該基準面又は該基準面と同一平
面を規定する補助部材に押圧せしめるように構成した支
持機構が提供される。<Summary of the Invention> According to the present invention, along a transparent plate on which a document is placed,
A support mechanism for moving the detection means for detecting the information on the document surface or the optical means for guiding the reflected light from the document surface as required, and being disposed at intervals in the moving direction of the detection means or the optical means And a pair of support members movably mounted in a direction substantially perpendicular to the direction of approaching and separating from the transparent plate, and each of the pair of support members facing each other toward a reference surface of the transparent plate. A biasing means for biasing, support rods respectively connected between the pair of support members, and a sliding means slidably supported by the support rods in the axial direction thereof and provided with the detection means or the optical means. A supporting member configured to press the upper end surfaces of the pair of supporting members against the reference surface of the transparent plate or an auxiliary member that defines the same plane as the reference surface by the action of the biasing means. Mechanism provided .
<発明の好適具体例> 以下、添付図面を参照して、本発明に従って構成され
た支持機構の具体例について説明する。尚、具体例で
は、複写機の読取り部における読取り手段の支持に適用
して説明する。<Preferred Specific Examples of the Invention> Hereinafter, specific examples of the support mechanism configured according to the present invention will be described with reference to the accompanying drawings. Note that the specific example will be described by applying the present invention to supporting reading means in a reading unit of a copying machine.
第1図乃至第3図、主として第1図を参照して、図示
のデジタル複写機は細長い箱状のハウジング2を備えて
おり、このハウジング2は下部本体ハウジング4、下部
本体ハウジング4の第1図において左部に装着された上
部ハウジング6及び下部本体ハウジング4の第1図にお
いて右部に開閉自在に装着された上部開閉ハウジング8
から構成されている。1 to 3, mainly with reference to FIG. 1, the illustrated digital copying machine has an elongated box-shaped housing 2, which is a lower body housing 4, and a first body of the lower body housing 4. 1 shows an upper housing 6 and a lower body housing 4 mounted on the left part in FIG.
It is composed of
図示の複写機は第1図において左部、即ち下部本体ハ
ウジング4及び上部ハウジング6によって規定された部
位に配設された読取り部10及び第1図において右部、即
ち下部本体ハウジング4及び上部開閉ハウジング8によ
って規定された部位に配設された記録部12を装備してい
る。The copying machine shown in FIG. 1 has a reading section 10 disposed at a position defined by a left portion, ie, a lower body housing 4 and an upper housing 6, and a right portion, ie, a lower body housing 4 and an upper opening / closing portion in FIG. The recording unit 12 is provided at a position defined by the housing 8.
第1図乃至第3図を参照して読取り部10について説明
すると、図示の読取り部10は、ガラスの如き透明板14、
透明板14上に載置された原稿の画像情報を読取る読取り
手段16、読取り手段16を透明板14に沿って移動自在に支
持する支持機構18及び読取り手段16を移動せしめるため
の駆動系20を備えている。上部ハウジング6の上面には
ほぼ全域に渡って矩形状の開口が形成されており、かか
る開口部に透明板14が配設されている。具体例では、上
部ハウジング6の4角部には透明板14を支持するための
支持片22が取付けられており(第1図において2個示
す)、透明板14は上部ハウジング6の上記開口を規定す
る突出縁部24及び支持片22に挾持されている。上部ハウ
ジング6の上面には原稿押え部材26が開閉自在に装着さ
れ、第1図及び第2図に示す閉位置にあるときには透明
板14及びこの透明板14上に載置された原稿を覆う。The reading unit 10 will be described with reference to FIGS. 1 to 3. The reading unit 10 shown in FIG.
A reading unit 16 for reading image information of a document placed on the transparent plate 14, a support mechanism 18 for movably supporting the reading unit 16 along the transparent plate 14, and a driving system 20 for moving the reading unit 16 are provided. Have. A rectangular opening is formed in the upper surface of the upper housing 6 over substantially the entire area, and a transparent plate 14 is provided in the opening. In a specific example, support pieces 22 for supporting the transparent plate 14 are attached to the four corners of the upper housing 6 (two shown in FIG. 1). It is sandwiched between the defined protruding edge 24 and the supporting piece 22. An original pressing member 26 is mounted on the upper surface of the upper housing 6 so as to be openable and closable, and covers the transparent plate 14 and the original placed on the transparent plate 14 when in the closed position shown in FIGS.
また、図示の支持機構18は、下部本体ハウジング4の
左部における4角部に配設された支持部材28a,28b,28c
及び28dを備えている。各支持部材28a,28b,28c及び28d
は実質上同一の構成であり、それらの下部30a,30b,30c
及び30dは横断面形状が円形のロッド状であり、それら
の上部32a,32b,32c及び32dは横断面形状が矩形のロッド
状である。一方、下部本体ハウジング4の左部における
4角部には底壁34から上方に突出する柱状部36a,36b,36
c及び36dが設けられている。各柱状部36a,36b,36c及び3
6dには上面から下方に延びる横断面形状が円形である受
部38a,38b,38c及び38dが規定されており、受部38a,38b,
38c及び38dには、夫々、対応する支持部材28a,28b,28c
及び28dの下部30a,30b,30c及び30dが上下方向に移動自
在に受入れられている。これら受部38a,38b,38c及び38d
の底部には、偏倚手段を構成するコイルばね40が配設さ
れている。コイルばね40は対応する支持部材28a,28b,28
c及び28dに作用して上方に弾性的に偏倚せしめ、かくし
て各支持部材28a,28b,28c及び28dの上端面は透明板14の
下面に圧接せしめられている。第1図において右側及び
第3図において下側に位置する一対の支持部材28a及び2
8b(詳しくはこれらの上下方向略中央部)間には、片方
の支持ロッド42が連結されている。即ち、支持ロッド42
の一端は圧入によって支持部材28aに固定され、その他
端は圧入によって支持部材28bに固定され、支持ロッド4
2は下部本体ハウジング4の一側部にて所定方向(第1
図において紙面に垂直な方向、第3図において左右方
向)に実質上水平に延びている。また、第1図において
左側及び第3図において上側に位置する一対の支持部材
28c及び28d(詳しくはこれらの上下方向略中央部)間に
は、他方の支持ロッド44が連結されている。即ち、支持
ロッド44の一端は圧入によって支持部材28dに固定さ
れ、その他端は圧入によって支持部材28cに固定され、
この支持ロッド44は下部本体ハウジング4の他側部にて
所定方向(第1図において紙面に垂直な方向、第3図に
おいて左右方向)に実質上水平に延びている。尚、支持
ロッド42及び44の離脱を防止するために、各支持部材28
a,28b,28c及び28dには、支持ロッド42及び44の端面に作
用する離脱防止片45が装着されている。The illustrated support mechanism 18 includes support members 28a, 28b, 28c disposed at four corners on the left side of the lower main body housing 4.
And 28d. Each support member 28a, 28b, 28c and 28d
Have substantially the same configuration, and their lower portions 30a, 30b, 30c
And 30d are rods having a circular cross section, and upper portions 32a, 32b, 32c and 32d are rods having a rectangular cross section. On the other hand, columnar portions 36a, 36b, 36 projecting upward from the bottom wall 34 are provided at the four corners on the left side of the lower body housing 4.
c and 36d are provided. Each column 36a, 36b, 36c and 3
6d defines receiving portions 38a, 38b, 38c and 38d whose cross-sectional shape extending downward from the upper surface is circular, and receiving portions 38a, 38b,
38c and 38d have corresponding support members 28a, 28b, 28c, respectively.
And 28d, the lower portions 30a, 30b, 30c and 30d are movably received in the vertical direction. These receiving parts 38a, 38b, 38c and 38d
A coil spring 40 constituting a biasing means is disposed at the bottom of the coil spring. The coil springs 40 correspond to the corresponding support members 28a, 28b, 28
The upper and lower surfaces of the supporting members 28a, 28b, 28c and 28d are pressed against the lower surface of the transparent plate 14 by acting on the members c and 28d so as to be elastically biased upward. A pair of support members 28a and 28 located on the right side in FIG. 1 and on the lower side in FIG.
One of the support rods 42 is connected between 8b (specifically, approximately the center in the vertical direction). That is, the support rod 42
Is fixed to the support member 28a by press-fitting, and the other end is fixed to the support member 28b by press-fitting.
2 is one side of the lower body housing 4 in a predetermined direction (first
It extends substantially horizontally in the direction perpendicular to the plane of the drawing (in the left-right direction in FIG. 3). A pair of support members located on the left side in FIG. 1 and on the upper side in FIG.
The other support rod 44 is connected between 28c and 28d (specifically, approximately the center in the vertical direction). That is, one end of the support rod 44 is fixed to the support member 28d by press fitting, the other end is fixed to the support member 28c by press fit,
The support rod 44 extends substantially horizontally in a predetermined direction (a direction perpendicular to the plane of FIG. 1 and a horizontal direction in FIG. 3) on the other side of the lower body housing 4. In order to prevent the support rods 42 and 44 from coming off, each support member 28
On the a, 28b, 28c and 28d, detachment preventing pieces 45 acting on the end faces of the support rods 42 and 44 are mounted.
支持ロッド42及び44には滑動部材46及び48が装着され
ている。滑動部材46は、支持ロッド42に滑動自在に装着
された本体部50a、本体部50aの外側端から実質上垂直上
方に突出する上突起部50b及び本体部50aから内方に突出
する支持部50cを有している。また、他方の滑動部材48
も、支持ロッド44に滑動自在に装着された本体部52a、
本体部52aの外側端から実質上垂直上方に突出する上突
起部52b及び本体部52aから内方に突出する支持部52cを
有している。具体例では、第1図に明確に示す通り、滑
動部材48は支持ロッド44の軸線方向に対して垂直な方向
に実質上移動することがないように上記支持ロッド44に
支持され(このことに関連して、滑動部材48には支持ロ
ッド44の断面形状に対応した円形の貫通孔が形成されて
いる)、一方滑動部材46は支持ロッド42の軸線方向に対
して垂直な方向に幾分移動するように上記支持ロッド42
に支持されており(このことに関連して、滑動部材46に
は支持ロッド42の断面形状より幾分横方向に細長い略だ
円形の貫通孔が形成されている)、従って読取り手段16
の移動時には支持ロッド44を基準にしてその軸線方向に
移動される。Sliding members 46 and 48 are mounted on the support rods 42 and 44, respectively. The sliding member 46 includes a main body 50a slidably mounted on the support rod 42, an upper protrusion 50b protruding substantially vertically upward from an outer end of the main body 50a, and a support 50c protruding inward from the main body 50a. have. Also, the other sliding member 48
Also, the main body 52a slidably mounted on the support rod 44,
The main body 52a has an upper protruding portion 52b that protrudes substantially vertically upward from the outer end thereof, and a support portion 52c that protrudes inward from the main body 52a. In a specific example, as is clearly shown in FIG. 1, the sliding member 48 is supported by the support rod 44 so as not to move substantially in a direction perpendicular to the axial direction of the support rod 44 (this being the case). Relatedly, a circular through-hole corresponding to the cross-sectional shape of the support rod 44 is formed in the slide member 48), while the slide member 46 moves somewhat in a direction perpendicular to the axial direction of the support rod 42. So that the above support rod 42
(In this connection, the sliding member 46 is formed with a substantially elliptical through-hole that is slightly elongated in the transverse direction than the cross-sectional shape of the support rod 42).
Is moved in the axial direction with reference to the support rod 44.
読取り手段16は透明板14上に載置された原稿の画像情
報を読取るそれ自体周知の電荷結合素子(CCD)(図示
せず)(検知手段を構成する)を備えており、細長いCC
Dがユニット本54の上面に配設されている。第1図に示
す通り、ユニット体54の一端部(第1図において右端
部)は滑動部材46の支持部50cに支持され、その他端部
(第1図において左端部)は他方の滑動部材48の支持部
52cに支持され、このユニット体54は滑動部材46及び48
の上突起部50b及び52b間に位置付けられている。The reading means 16 includes a well-known charge-coupled device (CCD) (not shown) (constituting detection means) for reading image information of a document placed on the transparent plate 14, and has an elongated CC.
D is provided on the upper surface of the unit book 54. As shown in FIG. 1, one end (the right end in FIG. 1) of the unit body 54 is supported by the support 50c of the sliding member 46, and the other end (the left end in FIG. 1) is the other sliding member 48. Support
The unit body 54 is supported by the sliding members 46 and 48
Are located between the upper protrusions 50b and 52b.
また、図示の駆動系20は、主駆動源を構成する電動モ
ータ56を備えている。下部本体ハウジング4の底壁34に
は上方に突出する複数個(具体例において3個)の突起
部58が設けられており、これら突起部58に支持プレート
60が装着され、支持プレート60の下面に上記電動モータ
56が取付けられている。電動モータ56の出力軸は支持プ
レート60を貫通して上方に突出し、この突出端部に出力
歯車62が装着されている。支持プレート60の上面には短
軸64が植設され、短軸64に回転自在に装着された歯車部
材66の大歯車68が上記出力歯車62に噛合されている。支
持プレート60には、また短軸70が植設され、この短軸70
に回転自在に装着された歯車72が上記歯車部材66の小歯
車74に噛合されている。支持プレート60には、更に短軸
76も植設されており、この短軸76に回転自在に装着され
た伝動部材78の歯車部80が上記歯車72に噛合されてい
る。伝動部材78にはプーリ部82が設けられており、この
プーリ部82と滑動部材48とは次の通り駆動連結されてい
る。即ち、下部本体ハウジング4の左部の第3図におい
て左端部には静止プーリ(図示せず)が回転自在に装着
されている。また滑動部材48の支持部52cの下面には一
対の突起部84a及び84bが設けられている。タイミングベ
ルトの如き伝動ベルト(図示せず)は、その片側部が突
起部84a及び48b間を通って上記プーリ部82及び上記静止
プーリ(図示せず)間に巻掛けられ、伝動ベルトの歯部
と突起部84aの内側に設けられた歯部が所要の通り噛合
されている。かく駆動連結されているので、伝動部材78
のプーリ部82が回転すると、伝動ベルトを介して滑動部
材48(これと一体に読取り手段16及び滑動部材46も)が
支持ロッド44に沿って矢印86及び88(第2図、第3図)
で示す方向に移動される。The illustrated drive system 20 includes an electric motor 56 that constitutes a main drive source. The bottom wall 34 of the lower main body housing 4 is provided with a plurality (three in the specific example) of projections 58 projecting upward, and these projections 58 are provided with support plates.
The electric motor is mounted on the lower surface of the support plate 60.
56 are installed. The output shaft of the electric motor 56 penetrates the support plate 60 and protrudes upward. An output gear 62 is mounted on the protruding end. A short shaft 64 is implanted on the upper surface of the support plate 60, and a large gear 68 of a gear member 66 rotatably mounted on the short shaft 64 is meshed with the output gear 62. The support plate 60 is also provided with a short axis 70 implanted therein.
The gear 72 rotatably mounted on the gear member 66 meshes with the small gear 74 of the gear member 66. The support plate 60 has a shorter axis
A gear 76 of a transmission member 78 rotatably mounted on the short shaft 76 is meshed with the gear 72. The transmission member 78 is provided with a pulley portion 82, and the pulley portion 82 and the sliding member 48 are drivingly connected as follows. That is, a stationary pulley (not shown) is rotatably mounted on the left end of the lower body housing 4 in FIG. A pair of protrusions 84a and 84b are provided on the lower surface of the support portion 52c of the sliding member 48. A transmission belt (not shown) such as a timing belt has one side portion wound between the pulley portion 82 and the stationary pulley (not shown) passing between the projections 84a and 48b, and the tooth portion of the transmission belt is formed. The teeth provided on the inside of the projection 84a are engaged with each other as required. Thus, the transmission member 78
When the pulley portion 82 rotates, the sliding member 48 (and the reading means 16 and the sliding member 46 together therewith) are moved along the support rod 44 by arrows 86 and 88 (FIGS. 2 and 3) via the transmission belt.
It is moved in the direction shown by.
原稿の読取りは次の通りにして遂行される。即ち、電
動モータ56が付勢されて所定方向に回転される。かくす
ると、出力歯車62、歯車部材66及び歯車72を介して伝動
部材78が所定方向と反対方向に回動され、伝動ワイヤ
(図示せず)を介して滑動部材48(これと一体にユニッ
ト体54及び滑動部材46も)が矢印86(第2図及び第3
図)で示す方向に移動され、かかる移動によって透明板
14上の原稿の読取りが遂行される。具体例では、第1図
及び第2図から容易に理解される如く、支持部材28a,28
b,28c及び28dの上端面が透明板14の内面に押圧され、透
明板14の基準面として作用する上記内面と支持ロッド42
及び44との間隔が上記支持部材28a,28b,28c及び28dによ
って一定に保持されている故に、滑動部材42及び44、即
ちこれらに装着された読取り手段16は実質上水平状態に
取付けられている透明板14の内面に沿って矢印86で示す
方向に移動し、透明板14上の原稿の正確な読取りが可能
になる。また、読取り移動時には、支持ロッド42及び44
と滑動部材46及び48が接触するのみで従来に比して接触
個所が少なく、振動,騒音等の発生も少なく、このこと
に起因しても原稿の正確な読取りが可能になる。尚、原
稿の読取りが終了すると、電動モータ56は反対方向に回
動され、読取り手段16は上述とは反対に矢印88で示す方
向に移動され、元の位置(例えば第2図及び第3図に示
す位置)に位置付けられる。Reading of the original is performed as follows. That is, the electric motor 56 is energized and rotated in a predetermined direction. Thus, the transmission member 78 is rotated in the opposite direction to the predetermined direction via the output gear 62, the gear member 66, and the gear 72, and the sliding member 48 (integrally with the unit body) is connected via a transmission wire (not shown). The arrow 86 (see FIGS. 2 and 3)
(Fig.)
The reading of the original on 14 is performed. In the specific example, as can be easily understood from FIGS. 1 and 2, the supporting members 28a, 28
The upper end surfaces of b, 28c, and 28d are pressed against the inner surface of the transparent plate 14, and the inner surface serving as the reference surface of the transparent plate 14 and the support rod 42.
And 44 are kept constant by the support members 28a, 28b, 28c and 28d, so that the sliding members 42 and 44, that is, the reading means 16 attached thereto, are mounted in a substantially horizontal state. It moves along the inner surface of the transparent plate 14 in the direction indicated by the arrow 86, and the original on the transparent plate 14 can be accurately read. During the reading movement, the support rods 42 and 44
The sliding members 46 and 48 are only in contact with each other, so that the number of contact points is smaller than in the prior art, and the occurrence of vibration, noise, and the like is reduced. When the reading of the original is completed, the electric motor 56 is rotated in the opposite direction, and the reading means 16 is moved in the direction indicated by the arrow 88, contrary to the above, to the original position (for example, FIG. 2 and FIG. 3). (Position shown in the figure).
かくの通りにして読取られた画像信号は、第1図に示
す記録部12に送給され、かかる画像信号に基いて記録紙
に所要の通り記録される。再び第1図を参照して、図示
の記録部12はサーマルヘッド92及びこのサーマルヘッド
92に対向して配設されたプラテンローラ94を備えてい
る。記録部12にはリボンカートリッジ96が着脱自在に装
着され、リボンカートリッジ96に内蔵されたインクリボ
ン98は片方の供給部100からサーマルヘッド92及びプラ
テンローラ94間を通って他方の巻取り部102に巻かれて
いる。また、上部開閉ハウジング8には導入開口104及
び送出開口106が規定されており、記録紙の如きシート
部材は導入開口104から導入され、案内板対108間を通っ
てサーマルヘッド92及びプラテンローラ94間に導かれ、
しかる後案内板対110間を通って送出開口106から送出さ
れる。そして、シート部材がサーマルヘッド92及びプラ
テンローラ94間を通って搬送される間に、読取り部10か
らの画像信号に基いてシート部材の表面に画像が形成さ
れる。The image signal read as described above is sent to the recording unit 12 shown in FIG. 1, and is recorded on a recording sheet as required based on the image signal. Referring to FIG. 1 again, the recording unit 12 shown in FIG.
A platen roller 94 is provided opposite to the roller 92. A ribbon cartridge 96 is detachably mounted on the recording unit 12, and the ink ribbon 98 built in the ribbon cartridge 96 passes from one supply unit 100 to the other winding unit 102 through the space between the thermal head 92 and the platen roller 94. It is wound. An introduction opening 104 and a delivery opening 106 are defined in the upper opening / closing housing 8, and a sheet member such as a recording sheet is introduced from the introduction opening 104, passes through a pair of guide plates 108, and a thermal head 92 and a platen roller 94. Led in between,
Thereafter, the paper is delivered from the delivery opening 106 through the space between the guide plate pairs 110. Then, while the sheet member is transported between the thermal head 92 and the platen roller 94, an image is formed on the surface of the sheet member based on the image signal from the reading unit 10.
第1図乃至第3図の具体例では、透明板14の内面を基
準面とし、実質上この内面に沿って読取り手段16が移動
する構成であるが、これに代えて、第4図に示す如く構
成することもできる。尚、第4図において、第1図乃至
第3図と実質上同一の部材は同一の番号を付して説明す
る。In the specific examples shown in FIGS. 1 to 3, the inner surface of the transparent plate 14 is used as a reference surface, and the reading means 16 moves substantially along the inner surface. Instead, as shown in FIG. It can also be configured as follows. In FIG. 4, members substantially the same as those in FIGS. 1 to 3 are denoted by the same reference numerals.
第4図において、この変形例では、透明板14の大きさ
が第1図乃至第3図に示す具体例より幾分小さく、各支
持部材28(第4図において4個の支持部材のうち1個の
みを示す)の上端面が上部ハウジングの突出縁部24(か
かる突出縁部24の下面が透明板14における原稿が載置さ
れる上面と実質上同一平面を規定する補助部材として機
能する)の下面にコイルばね40の作用によって押圧され
ている。In FIG. 4, in this modification, the size of the transparent plate 14 is somewhat smaller than the specific examples shown in FIGS. 1 to 3, and each of the support members 28 (one of the four support members in FIG. The upper end surface of the upper housing has a protruding edge 24 of the upper housing (the lower surface of the protruding edge 24 functions as an auxiliary member that defines a substantially same plane as the upper surface of the transparent plate 14 on which the document is placed). Is pressed by the action of the coil spring 40 on the lower surface of the coil.
かかる変形例では、第4図から容易に理解される如
く、透明板14の上面が基準面として作用し、この上面と
支持ロッド42との間隔が支持部材28によって一定に保持
され、それ故に、読取り手段16は実質上透明板14の上面
に沿って移動され、透明板14の厚さの誤差の影響を実質
上受けず、原稿の一層正確な読取りが可能になる。In such a modification, as can be easily understood from FIG. 4, the upper surface of the transparent plate 14 serves as a reference surface, and the distance between the upper surface and the support rod 42 is kept constant by the support member 28, and therefore, The reading means 16 is moved substantially along the upper surface of the transparent plate 14, and is not substantially affected by an error in the thickness of the transparent plate 14, thereby enabling more accurate reading of the document.
以上、本発明に従う支持機構の具体例について説明し
たが、本発明はかかる具体例に限定されるものではな
く、本発明の範囲を逸脱することなく種々の変形乃至修
正が可能である。As described above, the specific examples of the support mechanism according to the present invention have been described. However, the present invention is not limited to the specific examples, and various changes and modifications can be made without departing from the scope of the present invention.
例えば、図示の具体例では、透明板上の原稿を読取る
原稿読取り手段の支持に適用しているが、これに限定さ
れることなく、原稿の濃度を検出する濃度検出手段、原
稿からの反射光を所定方向に導く反射鏡の如き光学手段
等の支持にも同様に適用することができる。For example, in the specific example shown in the drawing, the present invention is applied to the support of a document reading means for reading a document on a transparent plate. However, the present invention is not limited to this. The present invention can be similarly applied to support of optical means such as a reflecting mirror for guiding the light in a predetermined direction.
第1図は、本発明に従う支持機構の一具体例を装備した
複写機の一例を示す断面図。 第2図は、第1図におけるII−II線による断面図。 第3図は、第1図の複写機の読取り部を、上部ハウジン
グ及びそれに関連する要素を省略して示す平面図。 第4図は、支持機構の変形例を装備した複写機の一部を
示す断面図。 2……ハウジング 10……読取り部 12……記録部 14……透明板 16……読取り手段 18……支持機構 28a,28b,28c及び28d……支持部材 40……コイルばね 42及び44……支持ロッド 46及び48……滑動部材FIG. 1 is a sectional view showing an example of a copying machine equipped with a specific example of a support mechanism according to the present invention. FIG. 2 is a sectional view taken along the line II-II in FIG. FIG. 3 is a plan view showing a reading unit of the copying machine shown in FIG. 1 omitting an upper housing and components related thereto; FIG. 4 is a sectional view showing a part of a copying machine equipped with a modification of the support mechanism. 2. Housing 10 Reading section 12 Recording section 14 Transparent plate 16 Reading means 18 Supporting mechanisms 28a, 28b, 28c and 28d Supporting members 40 Coil springs 42 and 44 Support rods 46 and 48 ... Sliding member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松下 司 大阪府大阪市東区玉造1丁目2番28号 三田工業株式会社内 (72)発明者 永田 勝己 大阪府大阪市東区玉造1丁目2番28号 三田工業株式会社内 (56)参考文献 特開 昭61−264960(JP,A) 特開 昭63−60667(JP,A) 実開 昭62−181069(JP,U) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsukasa Matsushita 1-2-28 Tamazo, Higashi-ku, Osaka-shi, Osaka Inside Mita Kogyo Co., Ltd. (72) Katsumi Nagata 1-2-28 Tamazo, Higashi-ku, Osaka-shi, Osaka Inside Mita Kogyo Co., Ltd. (56) References JP-A-61-264960 (JP, A) JP-A-63-60667 (JP, A) Jpn.
Claims (1)
の情報を検知する検知手段又は原稿面からの反射光を所
要の通り導く光学手段を所要の通り移動せしめる支持機
構にして、該検知手段又は該光学手段の移動方向に対し
て実質上垂直な方向に間隔置いて配設され該透明板に近
接及び離隔する方向に移動自在に装着された夫々一対の
支持部材と、該夫々一対の支持部材の各々を該透明板の
基準面に向けて偏倚せしめる偏倚手段と、該夫々一対の
支持部材間に各々連結された各支持ロッドと、該各支持
ロッドにその軸線方向に滑動自在に支持され且つ該検知
手段又は該光学手段が装着された滑動部材とを具備し、
該偏倚手段の作用によって該夫々一対の支持部材の各上
端面を該透明板の該基準面又は該基準面と同一平面を規
定する補助部材に押圧せしめるように構成した支持機
構。A supporting mechanism for moving, as required, detecting means for detecting information on the original surface or optical means for guiding reflected light from the original surface as required along a transparent plate on which the original is placed. A pair of support members disposed at intervals in a direction substantially perpendicular to the direction of movement of the detection means or the optical means and movably mounted in directions approaching and separating from the transparent plate; Biasing means for biasing each of the pair of support members toward the reference plane of the transparent plate, support rods respectively connected between the pair of support members, and sliding in the axial direction of the support rods; A sliding member freely supported and equipped with the detection means or the optical means,
A support mechanism configured to press each upper end surface of each of the pair of support members against the reference surface of the transparent plate or an auxiliary member that defines the same plane as the reference surface by the action of the biasing means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62300078A JP2579505B2 (en) | 1987-11-30 | 1987-11-30 | Support mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62300078A JP2579505B2 (en) | 1987-11-30 | 1987-11-30 | Support mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01143468A JPH01143468A (en) | 1989-06-06 |
JP2579505B2 true JP2579505B2 (en) | 1997-02-05 |
Family
ID=17880439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62300078A Expired - Fee Related JP2579505B2 (en) | 1987-11-30 | 1987-11-30 | Support mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2579505B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5573338A (en) * | 1993-12-27 | 1996-11-12 | Pfu Limited | Automatic paper feeder and frame structure of document input device |
FR2761845B1 (en) * | 1997-04-02 | 1999-06-04 | Sagem | FLAT IMAGE ANALYSIS DEVICE FOR OFFICE MACHINE |
JP2000151922A (en) * | 1998-11-16 | 2000-05-30 | Ricoh Co Ltd | Image reader |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH084299B2 (en) * | 1985-05-20 | 1996-01-17 | 松下電送株式会社 | Reader |
JPH0453089Y2 (en) * | 1986-05-07 | 1992-12-14 | ||
JPS6360667A (en) * | 1986-08-28 | 1988-03-16 | Pfu Ltd | Image reader |
-
1987
- 1987-11-30 JP JP62300078A patent/JP2579505B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH01143468A (en) | 1989-06-06 |
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