JPS5921578Y2 - Sheet attachment device to drum - Google Patents

Description

【考案の詳細な説明】 本考案はドラム式ファクシミリ装置等における原稿また
は記録紙等のシートをドラムに装着する装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for mounting a sheet such as a document or recording paper on a drum in a drum-type facsimile machine or the like.

従来のドラム式ファクシミリ装置において、シートをド
ラムに装着する装置に、シートの始端のみをドラムに保
持固定する装置がある。In a conventional drum-type facsimile machine, a device for mounting a sheet on a drum includes a device for holding and fixing only the leading edge of the sheet to the drum.

その装置では機構が簡単であるがシートの終端がドラム
に保持固定されていないため、シートの浮きを防止する
部材を走査位置近傍に必要とし、またシートの浮きによ
り回転時に騒音発生の欠点があった。Although this device has a simple mechanism, the end of the sheet is not held and fixed to the drum, so a member to prevent the sheet from floating is required near the scanning position, and the sheet floating causes noise during rotation. Ta.

本考案は簡単な機構で、前記欠点をなくした、ドラムへ
のシート装着装置を提供するもので、シートの始端をド
ラムに保持固定した後、ドラムを１回転させるのみで、
その他の外部操作を全く要せず、自動的にシートの終端
をも、ドラムに保持固定し、また、簡単な一動作でシー
ト始端及び終端を同時にドラムから解除することを特徴
とするものである。The present invention provides a sheet mounting device for a drum with a simple mechanism that eliminates the above-mentioned drawbacks.After the starting end of the sheet is held and fixed on the drum, the drum can be rotated once.
It is characterized by the fact that it automatically holds and fixes the end of the sheet on the drum without requiring any other external operations, and also releases the start and end of the sheet from the drum at the same time with one simple action. .

本考案を図面にもとづき詳述する。The present invention will be explained in detail based on the drawings.

本考案の機構は左右対称であるため、図及び説明は、そ
の一方についてのみ述べる。Since the mechanism of the present invention is symmetrical, the drawings and description will refer to only one side.

第１図は主要構成部品を示し、第２図はその組立図、第
３図はシート始端保持部材構成図、第４図は切欠部を有
する径の異なる２種の円板とその両切大部に係合するロ
ック部材の動作説明図である。Fig. 1 shows the main components, Fig. 2 shows its assembly, Fig. 3 shows the structure of the sheet starting end holding member, and Fig. 4 shows two types of discs with different diameters having notches and their respective cut sizes. FIG.

シート始端保持部材は、シート始端押えバー１と、該バ
ー１が取付けられたスライドリング３とから成り、該リ
ング３はその径方向に摺動穴１８を有し、ドラム軸９に
固定された第１のバネ取付具５のボス部に設けた摺動面
１９と面接触し、摺動動作を行ない、バー１をドラム１
０の径方向にのみ移動自在とさせている。The sheet starting end holding member consists of a sheet starting end holding bar 1 and a slide ring 3 to which the bar 1 is attached.The ring 3 has a sliding hole 18 in its radial direction and is fixed to a drum shaft 9. The bar 1 is brought into surface contact with the sliding surface 19 provided on the boss portion of the first spring attachment 5 to perform a sliding movement, and the bar 1 is moved to the drum 1.
It is made movable only in the radial direction of 0.

第１のバネ取付具５の裏面側には、前記摺動面１９を形
成すべく裏面から突出してなる非円形ボス部が設けられ
ている。A non-circular boss portion protruding from the back surface to form the sliding surface 19 is provided on the back side of the first spring attachment 5.

一方バネ７は前記リング３とバネ取付具５間に張架され
、前記バー１にドラム１０への圧接力を与えている。On the other hand, the spring 7 is stretched between the ring 3 and the spring fitting 5, and applies pressure to the bar 1 against the drum 10.

また切欠部１４を有する小径円板１２も前記バネ取付具
５に固定され、ドラム１０と共に前記バー１、リング３
、バネ取付具５、円板１２は回転する。Further, a small diameter disk 12 having a notch 14 is also fixed to the spring mount 5, and together with the drum 10, the bar 1 and the ring 3 are fixed to each other.
, the spring fitting 5, and the disk 12 rotate.

一方、切欠部１５を有する大径円板１３は前記円板１２
の外側に組込まれ、円板１２．１３に捩り力を与える捩
りコイルバネ１６により連結されている。On the other hand, the large-diameter disk 13 having the notch 15 is connected to the disk 12.
It is connected by a torsion coil spring 16 which is installed on the outside of the disc 12.13 and applies a torsional force to the disc 12.13.

またシート終端保持部材はシート終端押えバー２と、該
バー２が取付けられたスライドリング４とから成り、該
リング４はその径方向に摺動穴１８を有し、ドラム軸９
と遊嵌された第２のバネ取付具６の裏面から突出する非
円形ボス部の摺動面１９と面接触し、前記始端保持バー
１と同じく始端保持バー２をドラム１０の径方向に移動
自在とされ、更にドラム軸９に対しても、回転自在とさ
れている。The sheet end holding member consists of a sheet end presser bar 2 and a slide ring 4 to which the bar 2 is attached, and the ring 4 has a sliding hole 18 in its radial direction.
The starting end holding bar 2 is moved in the radial direction of the drum 10 in the same way as the starting end holding bar 1 by coming into surface contact with the sliding surface 19 of the non-circular boss portion protruding from the back surface of the second spring fitting 6 that is loosely fitted. It is made to be freely rotatable, and furthermore, it is made to be freely rotatable with respect to the drum shaft 9.

一方そのリング４には前記円板１２．１３の切欠部１４
．１５に係合するロック部材１１が設けられ、またバネ
８は前記リング４と第２バネ取付具６間に張架され、バ
ー２にドラム１０への圧接力を与えている。On the other hand, the ring 4 has a notch 14 in the disk 12.13.
．． A locking member 11 is provided which engages with the bar 15, and a spring 8 is stretched between the ring 4 and the second spring attachment 6 to apply pressure to the bar 2 against the drum 10.

従ってスライドリング４にバネ８の力に抗する外力を作
用させバー２をドラム１０から一定の距離だけ離した時
、前記ロック部材１１は、前記円板１２．１３の切欠部
１４．１５との係合を解除され、第４図に示す如く前記
捩りコイルバネ１６の捩り力により大径円板１３はドラ
ム１０の回転方向と同方向のＢ方向に、前記円板１２．
１３とに設けられたピン２０と円弧溝２１により規制さ
れた角度θ回転し、前記切欠部１４．１５は位置ずれを
生ずる。Therefore, when an external force is applied to the slide ring 4 that resists the force of the spring 8 and the bar 2 is separated from the drum 10 by a certain distance, the locking member 11 engages with the notch 14.15 of the disc 12.13. The engagement is released, and as shown in FIG. 4, due to the torsional force of the torsion coil spring 16, the large-diameter disk 13 is moved in the direction B, which is the same direction as the rotational direction of the drum 10, and the disk 12.
The notches 14 and 15 are rotated by an angle θ regulated by the pin 20 and the arcuate groove 21 provided in the notches 14 and 13, and the notches 14 and 15 are displaced.

従って前記外力が除がれても、ロック部材１１は大径円
板１３の円周部に当接し、切欠部１４゜１５に係合する
ことなく待機状態とされる。Therefore, even if the external force is removed, the locking member 11 comes into contact with the circumference of the large-diameter disk 13 and remains in a standby state without engaging with the notches 14 and 15.

二の時シートの終端保持バー２はストッパー１７部に係
合しドラム１０の回転により、摩擦係合的に前記終端保
持部材が共回りするのを防止している。At the second time, the sheet end holding bar 2 engages with the stopper 17 to prevent the end holding member from rotating together with the rotation of the drum 10 in a frictional engagement manner.

次にドラム１０が回転させられると、捩りコイルバネ１
６、ピッ２０円弧溝２１により小径円板１２に連結規制
されて大径円板１３も回転する。Next, when the drum 10 is rotated, the torsion coil spring 1
6. The large diameter disc 13 also rotates as it is regulated to be connected to the small diameter disc 12 by the pitch 20 and the arcuate groove 21.

次に前記大径円板１３の切欠部１５が前記ロック部材１
１の位置に来ると、ロック部材１１は切欠部１５と係合
し、前記小径円板１２の円周部に当接する。Next, the notch 15 of the large diameter disc 13 is inserted into the locking member 1.
When the locking member 11 reaches the position 1, the locking member 11 engages with the notch 15 and comes into contact with the circumferential portion of the small diameter disk 12.

この時バー２はストッパー１７部と保合を続けている。At this time, the bar 2 continues to be engaged with the stopper 17.

更にドラム１０が回転させられると、ドラム軸９に連結
固定された小径円板１２は回転を続けるが、ロック部材
１１と切欠部１５で係合した大径円板１３は、捩りコイ
ルバネ１６の力に抗して停止し、側円板の切欠部１４．
１５が一致した時ロック部材１１は両切大部１４．１５
と係合し、バネ８の力によりバー２はストッパー１７よ
りはずれ、ドラム１０に圧接し、以後ドラム１０と一緒
に回転する。When the drum 10 is further rotated, the small diameter disc 12 connected and fixed to the drum shaft 9 continues to rotate, but the large diameter disc 13 engaged with the locking member 11 at the notch 15 is moved by the force of the torsion coil spring 16. It stops against the notch 14 of the side disc.
15 match, the locking member 11 has both cut edges 14 and 15.
The bar 2 is disengaged from the stopper 17 by the force of the spring 8, comes into pressure contact with the drum 10, and thereafter rotates together with the drum 10.

次に各部の動作をシート装着動作と共に説明する。Next, the operation of each part will be explained together with the sheet mounting operation.

ドラム１０の停止位置は第４図の如く、前記両リング３
，４をドラムの径方向にシフトしてシート終端保持部材
がバーストツバ−１７部に係合し、ロック部材１１が切
欠部１４．１５より解除され、円板１２、１３が捩りコ
イルバネ１６の動作により前記設定角度θだけ捩られ、
切欠部１４．１５が位置ずれを生じた状態の待機状態を
とる如くする。The stopping position of the drum 10 is as shown in FIG.
, 4 in the radial direction of the drum, the sheet end holding member engages with the burst collar 17, the locking member 11 is released from the notch 14.15, and the discs 12, 13 are torsionally moved by the action of the coil spring 16. twisted by the set angle θ,
The cutout portions 14 and 15 are placed in a standby state in which the position is shifted.

次にシート始端をバー１とドラム１０間に置き、外力を
除くとバネ７の力によりバー１はドラム１０に押当てら
れ、シートの始端をドラム１０に保持固定する。Next, the starting end of the sheet is placed between the bar 1 and the drum 10, and when the external force is removed, the bar 1 is pressed against the drum 10 by the force of the spring 7, and the starting end of the sheet is held and fixed to the drum 10.

一方化のバー２は前記した如くバーストツバ−１７と係
合し、ドラム１０が適当な圧接部材を用いてシートをド
ラム１０に密着させながら回転させられ前記動作により
、ロック部材１１が切欠部１４゜１５と係合するとバネ
８の力によりドラム１０に押当てられシート終端をドラ
ム１０に保持固定する。The one-sided bar 2 engages with the burst collar 17 as described above, and the drum 10 is rotated while keeping the sheet in close contact with the drum 10 using an appropriate pressure contact member, and as a result of the above operation, the locking member 11 is moved to the notch 14°. 15, it is pressed against the drum 10 by the force of the spring 8, and the end of the sheet is held and fixed to the drum 10.

この時バー２はストッパー１７との保合を解除され、ド
ラム１０と共に回転する。At this time, the bar 2 is released from the stopper 17 and rotates together with the drum 10.

次に走査動作を終了した後、前記停止定位置にドラム１
０を停止させ、スライドリング３，４をバネ７．８に抗
して移動させると、バー１，２はドラム１０への圧接を
解除され、シートを簡単に取り出すことができる。Next, after completing the scanning operation, the drum 1 is placed at the stop position.
0 is stopped and the slide rings 3, 4 are moved against the springs 7.8, the bars 1, 2 are released from pressure contact with the drum 10 and the sheet can be easily taken out.

またこの状態が前記待機状態となる。This state also becomes the standby state.

本考案による装置によれば、特定寸法のシートをドラム
に容易に装填し得ると共に、それ以外の短い寸法のシー
トもまた透明シート等を利用することにより容易に装着
することができる。According to the apparatus according to the present invention, sheets of a specific size can be easily loaded onto the drum, and sheets of other short sizes can also be easily loaded by using a transparent sheet or the like.

また、側円板の段差を利用して確実にロック部材を両切
大部に係合し、かつその保合動作を２組の円板をずらす
ことにより大きく設定して、シートの終端保持の確実性
を高め得る。In addition, the locking member is reliably engaged with both cut-out portions by utilizing the step of the side discs, and the locking action is set to be large by shifting the two sets of discs, thereby making it possible to hold the end of the sheet. Can increase certainty.

【図面の簡単な説明】 第１図は主要構成部品の分解斜視図、第２図は主要部品
を組立てた場合の断面図、第３図はシート始端保持のた
めの説明図、第４図は切欠部を有する径の異なる２種の
円板と、その切欠部に係合するロック部材の動作説明図
である。 １・・・・・・始端押えバー、２・・・・・・終端押え
バー、３゜４・・・・・・スライドリング、５，６・・
・・・・バネ取付具、７．８・・・・・・バネ、９・・
・・・・ドラム軸、１０・・・・・・ドラム、１１・・
・・・・ロック部材、１２．１２・・・・・・円板、１
４．１５・・・・・・切欠部、１６・・・・・・捩りコ
イルバネ、１７・・・・・・バーストツバ−１１８・・
・・・・摺動穴、１９・・・・・・バネ取付具のボス部
に設けた摺動面、２０・・・・・・ピン、２１・・・・
・・円弧溝。[Brief explanation of the drawings] Figure 1 is an exploded perspective view of the main components, Figure 2 is a sectional view of the assembled main parts, Figure 3 is an explanatory diagram for holding the sheet starting edge, and Figure 4 is an exploded perspective view of the main components. FIG. 3 is an explanatory diagram of two types of discs having notches having different diameters and a locking member that engages with the notches. 1...Starting end presser bar, 2...End presser bar, 3゜4...Slide ring, 5,6...
...Spring fitting, 7.8...Spring, 9...
...Drum shaft, 10...Drum, 11...
... Lock member, 12.12 ... Disc, 1
4.15...Notch, 16...Torsion coil spring, 17...Burst collar 118...
...Sliding hole, 19...Sliding surface provided on the boss part of the spring mount, 20...Pin, 21...
...Arc groove.

Claims (1)

【実用新案登録請求の範囲】 ドラム式ファクシミリ装置等のドラムに原稿または記録
紙等のシートを装着する装置において、シートの始端及
び終端をドラムに保持固定する押えバーを備えたシート
保持部材を有し、そのシート始端保持部材は、ドラム軸
に固定された第１のバネ取付具の非円形ボス部にドラム
の径方向に移動自在に取付けられて、そのシート始端保
持部材と第１バネ取付具の間にはバネを張架し、そして
、そのシート終端保持部材は、そのドラム軸に遊嵌され
た第２のバネ取付具の非円形ボス部に移動自在に取付け
られて、そのシート終端保持部材と第２バネ取付具の間
にバネを張架し、その第１バネ取付具と第２バネ取付具
の間には、直径が異なり外周に共通な切欠部を有する２
組の円板を、互いに回転方向の捩りコイルバネにて連結
された態様で介在させ、その小型円板をドラム軸または
前記第１バネ取付具に固定し、前記シート終端保持部に
は前記両切大部と係合するロック部材を設け、シートを
ドラムへ装着のため、前記両シート保持部材を径方向に
移動させた際、前記両円板の切欠部の位置ずれにより、
前記大径板上に当接したロック部材がドラムの回転と共
に回転するのを阻止するストッパーを配置してなり、 前記ロック部材が、回転ドラムに連行されて来た前記大
径円板の切欠部に係合しこの大径円板を前記捩りコイル
バネの作用力に抗して停止させ、前記両円板の切欠部が
一致したとき、前記ロック部材が両切大部と係合し、第
２バネ取付具のバネの作用力によりシート終端保持部材
がドラムに圧接して、シートの終端を保持したことを特
徴とするドラムへのシート装着装置。[Scope of Claim for Utility Model Registration] A device for loading a sheet such as a manuscript or recording paper onto a drum such as a drum-type facsimile machine, which has a sheet holding member equipped with a presser bar that holds and fixes the starting and ending ends of the sheet to the drum. The sheet starting edge holding member is movably attached to the non-circular boss portion of the first spring fitting fixed to the drum shaft in the radial direction of the drum, and the sheet starting edge holding member and the first spring fitting A spring is stretched between them, and the sheet end holding member is movably attached to a non-circular boss portion of a second spring mount that is loosely fitted to the drum shaft, and the sheet end holding member is A spring is stretched between the member and the second spring fitting, and the first spring fitting and the second spring fitting have two different diameters and a common notch on the outer periphery.
A set of discs are interposed in such a manner that they are connected to each other by torsion coil springs in the rotational direction, and the small discs are fixed to the drum shaft or the first spring fixture, and the sheet end holding part is provided with the double cutouts. A locking member that engages with the main portion is provided, and when both the sheet holding members are moved in the radial direction in order to attach the sheet to the drum, due to positional deviation of the notches of both the discs,
A stopper is arranged to prevent the locking member in contact with the large-diameter plate from rotating with the rotation of the drum, and the locking member is attached to the notch of the large-diameter disk that has been carried by the rotating drum. When the large-diameter disc is stopped against the acting force of the torsion coil spring, and the notches of both discs coincide, the locking member engages with both the notches, and the second 1. An apparatus for mounting a sheet onto a drum, characterized in that a sheet end holding member is brought into pressure contact with the drum by the acting force of a spring of a spring attachment to hold the end of the sheet.