JP6926373B2

JP6926373B2 - Doctor device

Info

Publication number: JP6926373B2
Application number: JP2017102186A
Authority: JP
Inventors: 原田　憲一; 憲一原田
Original assignee: 株式会社オリエント総業
Priority date: 2017-05-23
Filing date: 2017-05-23
Publication date: 2021-08-25
Anticipated expiration: 2037-05-23
Also published as: JP2018196944A

Description

本発明は、ドクターブレードを固定するするドクター装置に関する。 The present invention relates to a doctor device for fixing a doctor blade.

従来、ドクターブレードを固定するドクター装置として、例えば以下に示す特許文献１に開示されているドクターホルダーがある。ここで、ドクターブレードは、グラビア印刷等に用いる版胴の版面に着いた余分なインキをかき取るための薄い板状の部材である。 Conventionally, as a doctor device for fixing a doctor blade, for example, there is a doctor holder disclosed in Patent Document 1 shown below. Here, the doctor blade is a thin plate-shaped member for scraping off excess ink adhering to the plate surface of the plate cylinder used for gravure printing and the like.

このドクターホルダーは、ドクターホルダー本体と、押さえ板と、支持部材と、固定部材とを備えている。 This doctor holder includes a doctor holder main body, a holding plate, a support member, and a fixing member.

ドクターホルダー本体は、ドクターブレードを支持する部材であって、先端部側に、ドクターブレードを支持するための平坦面を有している。押さえ板は、弾性を有する帯状の部材であって、幅方向の一端部でドクターブレードをドクターホルダー本体に押しつける部材である。押さえ板は、ドクターホルダー本体と対向して設けられている。支持部材は、押さえ板の一端部と他端部の間であって、押さえ板の反ドクターホルダー本体側（つまり上側）に、押さえ板に当接し、押さえ板の他端部を反ドクターホルダー本体側に変位させることで、押さえ板の一端部をドクターホルダー本体側に変位させるための支点となる部材である。支持部材は、ボルトによって、ドクターホルダー本体に固定されている。固定部材は、回動して押さえ板の他端部を反ドクターホルダー本体側（つまり上側）に変位させる部材である。具体的には、外周に、平坦面と、円弧面とを有する棒状の部材である。固定部材は、ドクターホルダー本体の上面に形成された溝部に回動可能に保持されている。 The doctor holder main body is a member that supports the doctor blade, and has a flat surface for supporting the doctor blade on the tip end side. The holding plate is an elastic band-shaped member, which is a member that presses the doctor blade against the doctor holder main body at one end in the width direction. The holding plate is provided so as to face the doctor holder main body. The support member is between one end and the other end of the holding plate, and is in contact with the holding plate on the anti-doctor holder main body side (that is, the upper side) of the holding plate, and the other end of the holding plate is the anti-doctor holder main body. By displacing it to the side, it is a member that serves as a fulcrum for displacing one end of the holding plate toward the doctor holder body side. The support member is fixed to the doctor holder body by bolts. The fixing member is a member that rotates to displace the other end of the holding plate toward the anti-doctor holder main body side (that is, the upper side). Specifically, it is a rod-shaped member having a flat surface and an arc surface on the outer circumference. The fixing member is rotatably held in a groove formed on the upper surface of the doctor holder body.

ドクターブレードは、ドクターホルダー本体の平坦面と押さえ板の一端部の間に基端部を挿入し、先端部を前側に突出させた状態で配置される。固定部材によって押さえ板の他端部を上側に変位させると、支持部材を支点として押さえ板の一端部がドクターホルダー本体側に変位する。その結果、ドクターブレードは、押さえ板の一端部によってドクターホルダー本体の平坦面に押しつけられ固定される。つまり、ドクターホルダー本体と押さえ板によって挟持され固定される。 The doctor blade is arranged in a state where the base end portion is inserted between the flat surface of the doctor holder main body and one end portion of the holding plate and the tip end portion is projected forward. When the other end of the holding plate is displaced upward by the fixing member, one end of the holding plate is displaced toward the doctor holder body side with the support member as a fulcrum. As a result, the doctor blade is pressed and fixed to the flat surface of the doctor holder body by one end of the holding plate. That is, it is sandwiched and fixed by the doctor holder body and the holding plate.

特開平１０−２７２７５７号公報Japanese Unexamined Patent Publication No. 10-272757

ところで、ドクターブレードによって版胴の版面に着いた余分なインキをかき取る際、ドクターホルダー本体に大きな力が加わる。そのため、ドクターホルダー本体には、充分な強度が要求される。 By the way, when the doctor blade scrapes off excess ink on the plate surface of the plate cylinder, a large force is applied to the doctor holder body. Therefore, the doctor holder body is required to have sufficient strength.

前述したように、ドクターホルダー本体には、固定部材を回動可能に保持するために溝部が形成されている。溝部の形成された部分の強度が低下しないように、その部分の厚さを厚くしなければならない。しかし、ドクターホルダー本体の厚さを厚くすると、ドクター装置が重くなってしまう。その結果、ドクター装置の交換等の際の作業性が悪くなってしまう。 As described above, the doctor holder body is formed with a groove portion for rotatably holding the fixing member. The thickness of the grooved portion must be increased so that the strength of the formed portion is not reduced. However, if the thickness of the doctor holder body is increased, the doctor device becomes heavy. As a result, workability at the time of exchanging the doctor device or the like is deteriorated.

本発明はこのような事情に鑑みてなされたものであり、重量を増加させることなく強度を確保することができるドクター装置を提供することを目的とする。 The present invention has been made in view of such circumstances, and an object of the present invention is to provide a doctor device capable of ensuring strength without increasing the weight.

上記課題を達成するためになされたドクター装置は、先端部にドクターブレードを支持する支持部を有する支持部材と、弾性を有する帯状の部材であって、支持部材と対向して設けられ、支持部材との間にドクターブレードが配置され、幅方向の一端部でドクターブレードを支持部に押しつける押さえ部材と、押さえ部材の一端部と他端部の間であって、押さえ部材の反支持部材側で押さえ部材に当接し、押さえ部材の他端部を反支持部材側に変位させることで押さえ部材の一端部を支持部材側に変位させるための支点となる支点部を有する支点部材と、支持部材に形成されたカム溝部内に回動可能に保持され、回動して押さえ部材の他端部を反支持部材側に変位させるカム部材と、を備え、カム部材によって押さえ部材の他端部を反支持部材側に変位させることで、支点部を支点として押さえ部材の一端部を支持部材側に変位させ、押さえ部材の一端部によってドクターブレードを支持部に押しつけてドクターブレードを固定するドクター装置であって、支持部材は、カム溝部と支持部の間であって前記カム溝部から間隔を隔てた位置に屈曲部を有し、屈曲部よりも後端部側が反押さえ部材側に屈曲している。 The doctor device made to achieve the above-mentioned problems is a support member having a support portion for supporting the doctor blade at the tip portion and an elastic band-shaped member, which is provided so as to face the support member and is a support member. A doctor blade is arranged between the two, and between a pressing member that presses the doctor blade against the supporting portion at one end in the width direction and between one end and the other end of the pressing member, on the non-supporting member side of the pressing member. A fulcrum member having a fulcrum portion that serves as a fulcrum for displacementing one end of the pressing member toward the support member by contacting the pressing member and displacing the other end of the pressing member toward the anti-support member side, and the support member. A cam member that is rotatably held in the formed cam groove portion and that rotates to displace the other end of the pressing member toward the anti-support member side is provided, and the other end of the pressing member is repelled by the cam member. By displacing to the support member side, one end of the pressing member is displaced to the support member side with the fulcrum as the fulcrum, and the doctor blade is pressed against the support by the one end of the pressing member to fix the doctor blade. The support member has a bent portion between the cam groove portion and the support portion at a position separated from the cam groove portion, and the rear end portion side of the bent portion is bent toward the counter-pressing member side.

この構成によれば、支持部材に形成されるカム溝部の深さを浅くすることができる。そのため、重量を増加させることなく、カム溝部が形成された部分の強度を確保することができる。 According to this configuration, the depth of the cam groove portion formed in the support member can be made shallow. Therefore, it is possible to secure the strength of the portion where the cam groove portion is formed without increasing the weight.

ドクター装置の支持部材は、カム溝部の後端部側に隣接して設けられる、押さえ部材側に突出する壁部を有することが好ましい。 The support member of the doctor device preferably has a wall portion that is provided adjacent to the rear end portion side of the cam groove portion and projects toward the pressing member side.

この構成によれば、カム部材の脱落を抑え、カム部材をカム溝部内で確実に回動させることができる。 According to this configuration, it is possible to prevent the cam member from falling off and to reliably rotate the cam member in the cam groove portion.

第１実施形態におけるドクター装置の側面図である。It is a side view of the doctor apparatus in 1st Embodiment. 図１におけるドクターブレードの上面図である。It is a top view of the doctor blade in FIG. 図１における支持部材の上面図である。It is a top view of the support member in FIG. 図１における押さえ部材の上面図である。It is a top view of the holding member in FIG. 図１における支点部材の側面図である。It is a side view of the fulcrum member in FIG. 図１におけるカム部材の上面図である。It is a top view of the cam member in FIG. 図６におけるＶＩＩ−ＶＩＩ矢視断面図である。FIG. 6 is a cross-sectional view taken along the line VII-VII in FIG. 図１におけるレバー部材の上面図である。It is a top view of the lever member in FIG. ドクターブレード固定前の第１実施形態におけるドクター装置の側面図である。It is a side view of the doctor apparatus in 1st Embodiment before fixing a doctor blade. 押さえ部材と支持部材の間にドクターブレードが挿入された第１実施形態におけるドクター装置の側面図である。It is a side view of the doctor device in 1st Embodiment in which a doctor blade is inserted between a holding member and a support member. 印刷機に固定された第１実施形態におけるドクター装置の側面図である。It is a side view of the doctor apparatus in 1st Embodiment fixed to a printing machine. 支持部材が屈曲部を持たない場合における、印刷機に固定されたドクター装置の側面図である。It is a side view of the doctor device fixed to a printing machine in the case where a support member does not have a bent portion. 第２実施形態におけるドクター装置の側面図である。It is a side view of the doctor apparatus in 2nd Embodiment. 押さえ部材と支持部材の間にドクターブレードが挿入された第２実施形態におけるドクター装置の側面図である。It is a side view of the doctor device in 2nd Embodiment in which a doctor blade is inserted between a holding member and a support member. 図１３及び図１４における支持部材の上面図である。13 is a top view of the support member in FIGS. 13 and 14.

次に実施形態を挙げ、本発明をより詳しく説明する。 Next, the present invention will be described in more detail with reference to embodiments.

（第１実施形態）
まず、図１〜図８を参照して本形態のドクター装置の構成について説明する。ここで、図１は、本形態におけるドクター装置の側面図である。図２は、図１におけるドクターブレードの上面図である。図３は、図１における支持部材の上面図である。図４は、図１における押さえ部材の上面図である。図５は、図１における支点部材の側面図である。図６は、図１におけるカム部材の上面図である。図７は、図６におけるＶＩＩ−ＶＩＩ矢視断面図である。図８は、図１におけるレバー部材の上面図である。なお、図中における前後方向、左右方向及び上下方向は、方向を区別するために便宜的に記載したものである。 (First Embodiment)
First, the configuration of the doctor device of this embodiment will be described with reference to FIGS. 1 to 8. Here, FIG. 1 is a side view of the doctor device in this embodiment. FIG. 2 is a top view of the doctor blade in FIG. FIG. 3 is a top view of the support member in FIG. FIG. 4 is a top view of the holding member in FIG. FIG. 5 is a side view of the fulcrum member in FIG. FIG. 6 is a top view of the cam member in FIG. FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. FIG. 8 is a top view of the lever member in FIG. The front-back direction, the left-right direction, and the up-down direction in the drawing are described for convenience in order to distinguish the directions.

図１に示すドクター装置１は、ドクターブレードＤＢを固定する装置である。ここで、ドクターブレードＤＢは、グラビア印刷等に用いる版胴の版面に着いた余分なインキをかき取るための部材である。図１及び図２に示すように、ドクターブレードＤＢは、左右方向に長い薄い帯状の金属を板厚方向に２枚積層して構成されている。図１に示すように、ドクター装置１は、支持部材１０と、押さえ部材１１と、支点部材１２と、固定部材１３とを備えている。 The doctor device 1 shown in FIG. 1 is a device for fixing the doctor blade DB. Here, the doctor blade DB is a member for scraping off excess ink adhering to the plate surface of the plate cylinder used for gravure printing and the like. As shown in FIGS. 1 and 2, the doctor blade DB is configured by laminating two thin strip-shaped metals long in the left-right direction in the plate thickness direction. As shown in FIG. 1, the doctor device 1 includes a support member 10, a pressing member 11, a fulcrum member 12, and a fixing member 13.

支持部材１０は、剛性を有する、つまり弾性変形が規制された所定厚さの屈曲した長方形状の金属からなる部材であって、幅方向の一端部である前側の先端部１０ａで、ドクターブレードＤＢを支持する部材である。具体的には、図３に示すように、剛性を有する所定厚さの左右方向に長い長方形状の金属からなる部材であって、先端部１０ａで、ドクターブレードＤＢを支持する部材である。支持部材１０は、後端部１０ｂが印刷機に固定される。支持部材１０は、先端部１０ａと後端部１０ｂの間に屈曲部１０ｃを有している。図１及び図３に示すように、支持部材１０は、支持部１００と、カム溝部１０１と、ねじ孔部１０２とを備えている。 The support member 10 is a member made of a bent rectangular metal having a rigidity, that is, a predetermined thickness in which elastic deformation is regulated, and is a front end portion 10a which is one end portion in the width direction, and is a doctor blade DB. It is a member that supports. Specifically, as shown in FIG. 3, it is a member made of a rectangular metal having a predetermined thickness and long in the left-right direction, and has a tip portion 10a that supports the doctor blade DB. The rear end portion 10b of the support member 10 is fixed to the printing machine. The support member 10 has a bent portion 10c between the front end portion 10a and the rear end portion 10b. As shown in FIGS. 1 and 3, the support member 10 includes a support portion 100, a cam groove portion 101, and a screw hole portion 102.

支持部１００は、先端部１０ａの上側に設けられたドクターブレードＤＢを支持するための部位である。支持部１００の上面には、ドクターブレードＤＢを支持するための左右方向に長い長方形状の平坦面１００ａが形成されている。平坦面１００ａの前後方向の寸法は、ドクターブレードＤＢの前後方向の寸法より小さく設定されている。ドクターブレードＤＢの前後方向の寸法の１／２程度に設定されている。平坦面１００ａの左右方向の寸法は、ドクターブレードＤＢの左右方向の寸法と同一になるように設定されている。 The support portion 100 is a portion for supporting the doctor blade DB provided on the upper side of the tip portion 10a. On the upper surface of the support portion 100, a rectangular flat surface 100a long in the left-right direction for supporting the doctor blade DB is formed. The dimension of the flat surface 100a in the front-rear direction is set smaller than the dimension of the doctor blade DB in the front-rear direction. It is set to about 1/2 of the dimension in the front-rear direction of the doctor blade DB. The horizontal dimension of the flat surface 100a is set to be the same as the horizontal dimension of the doctor blade DB.

カム溝部１０１は、後述する固定部材１３のカム部材１３０を周方向に回動可能に保持するための部位である。具体的には、支持部材１０の上面に形成された、先端部１０ａと後端部１０ｂの間の所定位置を左右方向に延びる、断面が弓形状をなす溝である。カム溝部１０１の弓形状の断面の円弧部分の直径は、後述するカム部材１３０の円弧面１３０ｂの直径よりわずかに大きくなるように設定されている。 The cam groove portion 101 is a portion for holding the cam member 130 of the fixing member 13, which will be described later, so as to be rotatable in the circumferential direction. Specifically, it is a groove formed on the upper surface of the support member 10 and extending in the left-right direction between a predetermined position between the front end portion 10a and the rear end portion 10b and having a bow-shaped cross section. The diameter of the arcuate portion of the bow-shaped cross section of the cam groove portion 101 is set to be slightly larger than the diameter of the arcuate surface 130b of the cam member 130 described later.

ねじ孔部１０２は、支点部材１２を固定するための部位である。具体的には、支持部材１０の上面に形成された、カム溝部１０１よりも前側に左右方向に間隔をあけて複数設けられる、後述する支点部材１２のねじ部１２２と螺合する孔である。 The screw hole portion 102 is a portion for fixing the fulcrum member 12. Specifically, it is a hole formed on the upper surface of the support member 10 and provided on the front side of the cam groove portion 101 at intervals in the left-right direction to be screwed with the screw portion 122 of the fulcrum member 12, which will be described later.

支持部材１０は、カム溝部１０１と支持部１００の間に屈曲部１０ｃを有している。具体的には、カム溝部１０１とねじ孔部１０２の間に屈曲部１０ｃを有している。屈曲部１０ｃの前側と後側の支持部材１０の厚さは同一である。支持部材１０は、屈曲部１０ｃよりも後端部１０ｂ側が、反押さえ部材１１側、つまり押さえ部材１１から離間する方向に屈曲している。具体的には、屈曲部１０ｃよりも後側が下側に屈曲している。より具体的には、屈曲に伴ってカム溝部１０１の深さが浅くなっても、カム溝部１０１によって、カム部材１３０を脱落することなく回動可能に保持することができる所定角度だけ、屈曲部１０ｃよりも後側が下側に屈曲している。 The support member 10 has a bent portion 10c between the cam groove portion 101 and the support portion 100. Specifically, a bent portion 10c is provided between the cam groove portion 101 and the screw hole portion 102. The thickness of the support member 10 on the front side and the rear side of the bent portion 10c is the same. The support member 10 is bent so that the rear end portion 10b side of the bent portion 10c is separated from the counter-pressing member 11 side, that is, the pressing member 11. Specifically, the rear side of the bent portion 10c is bent downward. More specifically, even if the depth of the cam groove 101 becomes shallow due to bending, the bent portion 101 can be rotatably held by the cam groove 101 without falling off. The rear side of 10c is bent downward.

図１に示す押さえ部材１１は、弾性を有する薄い帯状の金属からなる部材であって、支持部材１０の上側に支持部材１０と対向して設けられ、幅方向の一端部１１ａでドクターブレードＤＢを支持部１００に押しつける部材である。具体的には、図４に示すように、左右方向に長い弾性を有する薄い帯状の金属からなる部材であって、前側の一端部１１ａでドクターブレードＤＢを支持部１００に押しつける部材である。押さえ部材１１の前後方向の寸法は、押さえ部材１１の一端部１１ａ側の先端を支持部材１０の先端部１０ａ側の先端に揃えた状態で、支持部材１０の上側に配置したときに、押さえ部材１１の他端部１１ｂがカム溝部１０１の上側に位置するように設定されている。押さえ部材１１の左右方向の寸法は、支持部１００の左右方向の寸法と同一になるように設定されている。押さえ部材１１は、だるま孔部１１０と、切り欠き部１１１と備えている。 The pressing member 11 shown in FIG. 1 is a member made of a thin strip-shaped metal having elasticity, is provided on the upper side of the supporting member 10 so as to face the supporting member 10, and the doctor blade DB is provided at one end portion 11a in the width direction. It is a member that is pressed against the support portion 100. Specifically, as shown in FIG. 4, it is a member made of a thin strip-shaped metal having long elasticity in the left-right direction, and is a member that presses the doctor blade DB against the support portion 100 at one end portion 11a on the front side. The dimensions of the pressing member 11 in the front-rear direction are such that when the tip of the pressing member 11 on the one end 11a side is aligned with the tip of the supporting member 10 on the tip 10a side and arranged on the upper side of the supporting member 10, the pressing member 11 is arranged. The other end 11b of 11 is set to be located above the cam groove 101. The dimensions of the pressing member 11 in the left-right direction are set to be the same as the dimensions of the support portion 100 in the left-right direction. The pressing member 11 includes a Daruma hole portion 110 and a notch portion 111.

だるま孔部１１０は、図１に示すように、後述するねじ孔部１０２に螺合した支点部材１２が挿通する孔である。図４に示すように、だるま孔部１１０は、後述する支点部材１２の頭部１２０が挿通可能な大径部１１０ａと、後述する支点部材１２の軸部１２１だけが挿通可能な前後方向に延びる小径部１１０ｂとを備えている。だるま孔部１１０は、一端部１１ａと他端部１１ｂの間であって、他端部１１ｂに近い位置に、大径部１１０ａを後側、小径部１１０ｂを前側にした状態で設けられている。支持部材１０のねじ孔部１０２と対応した位置に、左右方向に沿って複数設けられている。 As shown in FIG. 1, the Daruma hole portion 110 is a hole through which the fulcrum member 12 screwed into the screw hole portion 102, which will be described later, is inserted. As shown in FIG. 4, the Daruma hole portion 110 extends in the front-rear direction in which only the large-diameter portion 110a through which the head 120 of the fulcrum member 12 described later can be inserted and the shaft portion 121 of the fulcrum member 12 described later can be inserted. It is provided with a small diameter portion 110b. The Daruma hole portion 110 is provided between one end portion 11a and the other end portion 11b at a position close to the other end portion 11b with the large diameter portion 110a on the rear side and the small diameter portion 110b on the front side. .. A plurality of support members 10 are provided along the left-right direction at positions corresponding to the screw hole portions 102.

切り欠き部１１１は、後述するように、カム部材１３０を回動させるためにレバー部材１３１を垂直に起こしたときに、レバー部材１３１との干渉を避けるために略方形状に切り欠かれた部位である。切り欠き部１１１は、押さえ部材１１の後側の他端部１１ｂに、レバー部材１３１の形状に合わせて、設けられている。 As will be described later, the notch portion 111 is a portion cut out in a substantially rectangular shape in order to avoid interference with the lever member 131 when the lever member 131 is vertically raised to rotate the cam member 130. Is. The cutout portion 111 is provided at the other end portion 11b on the rear side of the pressing member 11 in accordance with the shape of the lever member 131.

図１に示す支点部材１２は、金属からなる部材であり、押さえ部材１１の一端部１１ａと他端部１１ｂの間であって、押さえ部材１１の反支持部材１０側（つまり上側）で、押さえ部材１１の他端部１１ｂを反支持部材１０側に変位させることで押さえ部材１１の一端部１１ａを支持部材１０側に変位させるための支点を形成する部材である。図５に示すように、支点部材１２は、頭部１２０と、軸部１２１と、ねじ部１２２とを備えている。 The fulcrum member 12 shown in FIG. 1 is a member made of metal, and is between one end 11a and the other end 11b of the pressing member 11 and is pressed by the anti-support member 10 side (that is, the upper side) of the pressing member 11. It is a member that forms a fulcrum for displacing one end 11a of the pressing member 11 toward the support member 10 by displacing the other end 11b of the member 11 toward the anti-support member 10. As shown in FIG. 5, the fulcrum member 12 includes a head portion 120, a shaft portion 121, and a screw portion 122.

頭部１２０は、押さえ部材１１の一端部１１ａと他端部１１ｂの間であって、押さえ部材１１の上側で押さえ部材１１に当接し、支点となる支点部を形成する円板状の部位である。頭部１２０の外径寸法は、大径部１１０ａを挿通できるが小径部１１０ｂを挿通できないように設定されている。具体的には、だるま孔部１１０の大径部１１０ａより小さく、かつ、小径部１１０ｂより大きく設定されている。 The head 120 is a disk-shaped portion between one end 11a and the other end 11b of the pressing member 11 and which abuts on the pressing member 11 on the upper side of the pressing member 11 to form a fulcrum portion serving as a fulcrum. be. The outer diameter of the head 120 is set so that the large diameter portion 110a can be inserted but the small diameter portion 110b cannot be inserted. Specifically, it is set to be smaller than the large diameter portion 110a of the Daruma hole portion 110 and larger than the small diameter portion 110b.

軸部１２１は、頭部１２０の下側に形成され、支持部材１０の上側の所定位置に頭部１２０を配置するための所定の軸方向長さを有する円柱状の部位である。軸部１２１の外径寸法は、大径部１１０ａ及び小径部１１０ｂを挿通できるように設定されている。具体的には、だるま孔部１１０の大径部１１０ａ及び小径部１１０ｂより小さく設定されている。また、軸部１２１の軸方向寸法は、ドクターブレードＤＢの固定前には、支持部材１０と押さえ部材１１の間に、ドクターブレードＤＢを配置するのに充分な隙間が形成され、ドクターブレードＤＢの固定時には、押さえ部材１１を支持部材１０側に充分に変位させることができるように設定されている。 The shaft portion 121 is a columnar portion formed on the lower side of the head portion 120 and having a predetermined axial length for arranging the head portion 120 at a predetermined position on the upper side of the support member 10. The outer diameter dimension of the shaft portion 121 is set so that the large diameter portion 110a and the small diameter portion 110b can be inserted. Specifically, it is set smaller than the large diameter portion 110a and the small diameter portion 110b of the Daruma hole portion 110. Further, in the axial dimension of the shaft portion 121, a sufficient gap is formed between the support member 10 and the pressing member 11 before the doctor blade DB is fixed, and the doctor blade DB has a sufficient gap for arranging the doctor blade DB. At the time of fixing, the pressing member 11 is set so as to be sufficiently displaced toward the supporting member 10.

ねじ部１２２は、支持部材１０のねじ孔部１０２と螺合することで、支点部材１２を支持部材１０に固定する円柱状の雄ねじである。 The screw portion 122 is a columnar male screw that fixes the fulcrum member 12 to the support member 10 by screwing it into the screw hole portion 102 of the support member 10.

図１に示す固定部材１３は、押さえ部材１１の他端部１１ｂを反支持部材１０側（つまり上側）に変位させることで、支点部材１２を支点として押さえ部材１１の一端部１１ａを支持部材１０側に変位させ、押さえ部材１１でドクターブレードＤＢを支持部材１０に押しつけて固定する部材である。固定部材１３は、カム部材１３０と、レバー部材１３１とを備えている。 In the fixing member 13 shown in FIG. 1, the other end 11b of the pressing member 11 is displaced toward the anti-supporting member 10 side (that is, the upper side), so that the one end portion 11a of the pressing member 11 is supported by the fulcrum member 12 as a fulcrum. It is a member that is displaced to the side and the doctor blade DB is pressed against the support member 10 by the pressing member 11 to be fixed. The fixing member 13 includes a cam member 130 and a lever member 131.

カム部材１３０は、断面一定の棒状の金属からなる部材であって、周方向に回動して押さえ部材１１の他端部１１ｂを反支持部材１０側（つまり上側）に変位させることで、支点部材１２を支点して押さえ部材１１の一端部１１ａを支持部材１０側に変位させる部材である。具体的には、図６及び図７に示すように、外周に、平坦面１３０ａと、円弧面１３０ｂとを有する棒状の部材である。平坦面１３０ａには、レバー部材１３１を挿入固定するための孔部１３０ｃが形成されている。カム部材１３０は、カム溝部１０１内に回動可能に保持された状態で、平坦面１３０ａが上側になったときに、平坦面１３０ａが支持部１００の平坦面１００ａと略同一高さになるように、寸法が設定されている。また、平坦面１３０ａが後側に、円弧面１３０ｂが上側から前側を経て下側にかけて配置されるようになったときに、押さえ部材１１の他端部１１ｂを上側に押し上げられるように、寸法が設定されている。 The cam member 130 is a rod-shaped metal member having a constant cross section, and is rotated in the circumferential direction to displace the other end 11b of the pressing member 11 toward the anti-support member 10 side (that is, the upper side) to serve as a fulcrum. It is a member that displaces one end 11a of the pressing member 11 toward the supporting member 10 by using the member 12 as a fulcrum. Specifically, as shown in FIGS. 6 and 7, it is a rod-shaped member having a flat surface 130a and an arc surface 130b on the outer periphery. A hole 130c for inserting and fixing the lever member 131 is formed in the flat surface 130a. The cam member 130 is rotatably held in the cam groove portion 101 so that when the flat surface 130a is on the upper side, the flat surface 130a is substantially the same height as the flat surface 100a of the support portion 100. The dimensions are set in. Further, when the flat surface 130a is arranged on the rear side and the arcuate surface 130b is arranged from the upper side to the lower side via the front side, the other end portion 11b of the pressing member 11 is pushed up so that the other end portion 11b is pushed up. It is set.

図１に示すレバー部材１３１は、図８に示すように、略Ｙ字棒状の金属からなる部材であって、カム部材１３０を回動させるための部材である。レバー部材１３１は、図６及び図７に示す孔部１３０ｃに、端部１３１ａが挿入され固定されている。 As shown in FIG. 8, the lever member 131 shown in FIG. 1 is a member made of a metal having a substantially Y-shaped rod shape, and is a member for rotating the cam member 130. The lever member 131 has an end 131a inserted and fixed in the holes 130c shown in FIGS. 6 and 7.

図１に示すように、支点部材１２は、ねじ部１２２を支持部材１０のねじ孔部１０２に螺合させた状態で、支持部材１０に固定されている。支持部材１０のカム溝部１０１には、固定部材１３のカム部材１３０が回動可能に保持されている。押さえ部材１１は、だるま孔部１１０の大径部１１０ａを支点部材１２の頭部１２０に挿通させた後に後側に移動させることで、だるま孔部１１０の小径部１１０ｂが支点部材１２の軸部１２１に挿通した状態で支持部材１０の上側に配置されている。 As shown in FIG. 1, the fulcrum member 12 is fixed to the support member 10 in a state where the screw portion 122 is screwed into the screw hole portion 102 of the support member 10. The cam member 130 of the fixing member 13 is rotatably held in the cam groove portion 101 of the support member 10. The pressing member 11 is moved to the rear side after inserting the large diameter portion 110a of the Daruma hole portion 110 into the head 120 of the fulcrum member 12, so that the small diameter portion 110b of the Daruma hole portion 110 becomes the shaft portion of the fulcrum member 12. It is arranged on the upper side of the support member 10 in a state of being inserted through 121.

次に、図１、図９〜図１０を参照して本形態のドクター装置におけるドクターブレードの取り付け方について説明する。ここで、図９は、ドクターブレード固定前の本形態におけるドクター装置の側面図である。図１０は、押さえ部材と支持部材の間にドクターブレードが挿入された本形態におけるドクター装置の側面図である。なお、図中における前後方向及び上下方向は、方向を区別するために便宜的に記載したものである。 Next, how to attach the doctor blade in the doctor device of this embodiment will be described with reference to FIGS. 1 and 9 to 10. Here, FIG. 9 is a side view of the doctor device in the present embodiment before fixing the doctor blade. FIG. 10 is a side view of the doctor device in the present embodiment in which the doctor blade is inserted between the pressing member and the supporting member. The front-back direction and the up-down direction in the figure are described for convenience in order to distinguish the directions.

まず、図９に示すように、レバー部材１３１を垂直に起こし、平坦面１３０ａが上側になるようにカム部材１３０を回動させる。カム部材１３０が回動し、平坦面１３０ａが上側になると、押さえ部材１１は、ほぼ水平状態になる。その結果、支点部材１２の頭部１２０と押さえ部材１１の間に隙間が生じ、押さえ部材１１が上下方向に移動可能となる。 First, as shown in FIG. 9, the lever member 131 is raised vertically, and the cam member 130 is rotated so that the flat surface 130a is on the upper side. When the cam member 130 rotates and the flat surface 130a is on the upper side, the pressing member 11 is in a substantially horizontal state. As a result, a gap is formed between the head 120 of the fulcrum member 12 and the pressing member 11, and the pressing member 11 can move in the vertical direction.

図１０に示すように、ドクターブレードＤＢは、押さえ部材１１の一端部１１ａと支持部材１０の先端部１０ａの間に基端部を挿入し、先端部を前側に突出された状態で配置される。 As shown in FIG. 10, the doctor blade DB is arranged in a state in which a base end portion is inserted between one end portion 11a of the pressing member 11 and the tip portion 10a of the support member 10, and the tip portion is projected forward. ..

その後、図１に示すように、レバー部材１３１を後側に９０度倒し、平坦面１３０ａが後側に、円弧面１３０ｂが上側から前側を経て下側にかけて配置されるようにカム部材１３０を回動させる。カム部材１３０が回動し、円弧面１３０ｂが上側から前側を経て下側にかけて配置されるようになると、押さえ部材１１の他端部１１ｂがカム部材１３０によって押し上げられ、上側に変位する。押さえ部材１１は、他端部１１ｂが上側に変位することで、頭部１２０を支点として一端部１１ａが支持部材１０側に変位する。その結果、ドクターブレードＤＢが、支持部１００の平坦面１００ａに押しつけられる。これにより、ドクターブレードＤＢが、支持部材１０と押さえ部材１１によって挟持され固定される。 After that, as shown in FIG. 1, the lever member 131 is tilted 90 degrees to the rear side, and the cam member 130 is rotated so that the flat surface 130a is arranged on the rear side and the arc surface 130b is arranged from the upper side to the lower side via the front side. Move. When the cam member 130 rotates and the arcuate surface 130b is arranged from the upper side to the lower side via the front side, the other end 11b of the pressing member 11 is pushed up by the cam member 130 and displaced upward. When the other end 11b of the pressing member 11 is displaced upward, one end 11a is displaced toward the support member 10 with the head 120 as a fulcrum. As a result, the doctor blade DB is pressed against the flat surface 100a of the support portion 100. As a result, the doctor blade DB is sandwiched and fixed by the support member 10 and the pressing member 11.

次に、図１１を参照して、本形態のドクター装置の印刷機への固定の仕方について説明する。ここで、図１１は、印刷機に固定された本形態におけるドクター装置の側面図である。なお、図中における前後方向及び上下方向は、印刷機の水平方向及び上下方向に相当する。 Next, with reference to FIG. 11, a method of fixing the doctor device of this embodiment to the printing machine will be described. Here, FIG. 11 is a side view of the doctor device in the present embodiment fixed to the printing machine. The front-back direction and the up-down direction in the drawing correspond to the horizontal direction and the up-down direction of the printing machine.

版胴の版面に着いた余分なインキをかき取る際、例えば、ドクターブレードＤＢを下側に傾斜した状態で、先端部を版面に接触させる。図１１に示すように、ドクター装置１は、支持部材１０のうち、屈曲部１０ｃよりも先端部１０ａ側が下側に傾斜し、屈曲部１０ｃよりも後端部１０ｂ側が前後方向に水平になった状態で配置される。そして、後端部１０ｂが印刷機の固定部材Ｆ１、Ｆ２の間に配置され、固定部材Ｆ１、Ｆ２がボルトＢによって締め付けられる。その結果、支持部材１０の後端部１０ｂが印刷機の固定部材Ｆ１、Ｆ２によって挟持され、ドクターブレードＤＢが下側に傾斜した状態で印刷機に固定される。 When scraping off excess ink on the plate surface of the plate cylinder, for example, the tip portion is brought into contact with the plate surface with the doctor blade DB tilted downward. As shown in FIG. 11, in the support member 10, the tip portion 10a side of the support member 10 is inclined downward from the bent portion 10c, and the rear end portion 10b side of the support member 10 is horizontal in the front-rear direction. Placed in the state. Then, the rear end portion 10b is arranged between the fixing members F1 and F2 of the printing machine, and the fixing members F1 and F2 are tightened by the bolts B. As a result, the rear end portion 10b of the support member 10 is sandwiched by the fixing members F1 and F2 of the printing machine, and the doctor blade DB is fixed to the printing machine in a state of being inclined downward.

次に、本形態のドクター装置の効果について説明する。 Next, the effect of the doctor device of this embodiment will be described.

本形態によれば、ドクター装置１は、支持部材１０と、押さえ部材１１と、支点部材１２と、固定部材１３とを備えている。支持部材１０は、先端部１０ａにドクターブレードＤＢを支持する支持部１００を有する部材である。押さえ部材１１は、弾性を有する帯状の部材であって、支持部材１０と対向して設けられ、支持部材１０との間にドクターブレードＤＢが配置され、一端部１１ａでドクターブレードＤＢを支持部材１０に押しつける部材である。支点部材１２は、押さえ部材１１の一端部１１ａと他端部１１ｂの間であって、押さえ部材１１の上側で押さえ部材に当接し、押さえ部材１１の他端部１１ｂを上側に変位させることで、押さえ部材１１の一端部１１ａを支持部材１０側に変位させるための支点となる頭部１２０を有する部材である。カム部材１３０は、支持部材１０に形成されたカム溝部１０１内に回動可能に保持され、回動して押さえ部材１１の他端部１１ｂを上側に変位させる部材である。支持部材１０は、カム溝部１０１と支持部１００の間に屈曲部１０ｃを有し、屈曲部１０ｃよりも後側が下側に屈曲している。そのため、支持部材１０に形成されるカム溝部１０１の深さを浅くすることができる。そのため、重量を増加させることなく、カム溝部１０１が形成された部分の強度を確保することができる。 According to this embodiment, the doctor device 1 includes a support member 10, a pressing member 11, a fulcrum member 12, and a fixing member 13. The support member 10 is a member having a support portion 100 that supports the doctor blade DB at the tip portion 10a. The pressing member 11 is an elastic band-shaped member, which is provided so as to face the support member 10, a doctor blade DB is arranged between the holding member 11 and the support member 10, and the doctor blade DB is supported by the one end portion 11a. It is a member that is pressed against. The fulcrum member 12 is between one end portion 11a and the other end portion 11b of the pressing member 11, and abuts on the pressing member on the upper side of the pressing member 11 to displace the other end portion 11b of the pressing member 11 upward. , A member having a head portion 120 serving as a fulcrum for displacing one end portion 11a of the pressing member 11 toward the support member 10. The cam member 130 is a member that is rotatably held in the cam groove portion 101 formed in the support member 10 and rotates to displace the other end portion 11b of the pressing member 11 upward. The support member 10 has a bent portion 10c between the cam groove portion 101 and the support portion 100, and the rear side of the bent portion 10c is bent downward. Therefore, the depth of the cam groove portion 101 formed in the support member 10 can be made shallow. Therefore, it is possible to secure the strength of the portion where the cam groove portion 101 is formed without increasing the weight.

図１２に示すように、支持部材１０が屈曲部１０ｃを有しておらず、先端部１０ａから後端部１０ｂにかけて直線状に延びていたとした場合、ドクターブレードＤＢを下側に傾斜した状態で印刷機に固定しようとすると、固定部材Ｆ１、Ｆ２を、後側の斜め上方に下側に傾けた状態で設けなければならない。そのため、ドクター装置を固定部材Ｆ１、Ｆ２に固定すると、固定部材Ｆ１、Ｆ２に遮られ、後側の斜め上方から、ドクターブレードＤＢの先端部を目視確認することが困難である。従って、後側の斜め上方から、ドクターブレードＤＢの先端部と版面の接触状態を目視確認することが困難である。しかし、本形態では、支持部材１０が屈曲部１０ｃを有している。屈曲部１０ｃよりも後側が下側に屈曲している。そのため、図１１に示すように、固定部材Ｆ１、Ｆ２を後側の斜め上方に設ける必要がない。従って、ドクター装置１を固定部材Ｆ１、Ｆ２に固定しても、固定部材Ｆ１、Ｆ２に遮られることなく、後側の斜め上方から、ドクターブレードＤＢの先端部を目視確認することができる。これにより、後側の斜め上方から、ドクターブレードＤＢの先端部と版胴の版面との接触状態を容易に目視確認することができる。 As shown in FIG. 12, when the support member 10 does not have the bent portion 10c and extends linearly from the front end portion 10a to the rear end portion 10b, the doctor blade DB is tilted downward. When fixing to a printing machine, the fixing members F1 and F2 must be provided in a state of being tilted diagonally upward and downward on the rear side. Therefore, when the doctor device is fixed to the fixing members F1 and F2, it is blocked by the fixing members F1 and F2, and it is difficult to visually confirm the tip portion of the doctor blade DB from diagonally above the rear side. Therefore, it is difficult to visually confirm the contact state between the tip of the doctor blade DB and the plate surface from diagonally above the rear side. However, in this embodiment, the support member 10 has a bent portion 10c. The rear side of the bent portion 10c is bent downward. Therefore, as shown in FIG. 11, it is not necessary to provide the fixing members F1 and F2 diagonally upward on the rear side. Therefore, even if the doctor device 1 is fixed to the fixing members F1 and F2, the tip portion of the doctor blade DB can be visually confirmed from diagonally above the rear side without being blocked by the fixing members F1 and F2. As a result, the contact state between the tip of the doctor blade DB and the plate surface of the plate cylinder can be easily visually confirmed from diagonally above the rear side.

なお、本形態では、押さえ部材１１が弾性を有する薄い帯状の金属からなる例を挙げているが、これに限られるものではない。押さえ部材１１は、金属以外の材料によって構成されていてもよい。弾性を有するものであればよい。 In this embodiment, an example in which the pressing member 11 is made of a thin strip-shaped metal having elasticity is given, but the present invention is not limited to this. The pressing member 11 may be made of a material other than metal. Anything that has elasticity may be used.

（第２実施形態）
次に、本形態のドクター装置について説明する。本形態のドクター装置は、第１実施形態のドクター装置に対して、カム溝部の後側に壁部を追加したものである。 (Second Embodiment)
Next, the doctor device of this embodiment will be described. The doctor device of the present embodiment has a wall portion added to the rear side of the cam groove portion with respect to the doctor device of the first embodiment.

本形態のドクター装置は、壁部を除いて第１実施形態のドクター装置と同一である。そのため、図１３〜図１５を参照して壁部の構成についてのみ説明し、ドクターブレードの取り付け方、及び、ドクター装置の固定に仕方については説明を省略する。なお、第１実施形態と同一の構成要素は、同一の符号を付し説明を省略する。ここで、図１２は、本形態におけるドクター装置の側面図である。図１３は、押さえ部材と支持部材の間にドクターブレードが挿入された第２実施形態におけるドクター装置の側面図である。図１４は、図１２及び図１３における支持部材の上面図である。なお、図中における前後方向、左右方向及び上下方向は、方向を区別するために便宜的に記載したものである。 The doctor device of this embodiment is the same as the doctor device of the first embodiment except for the wall portion. Therefore, only the configuration of the wall portion will be described with reference to FIGS. 13 to 15, and the description of how to attach the doctor blade and how to fix the doctor device will be omitted. The same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. Here, FIG. 12 is a side view of the doctor device in this embodiment. FIG. 13 is a side view of the doctor device in the second embodiment in which the doctor blade is inserted between the pressing member and the supporting member. FIG. 14 is a top view of the support member in FIGS. 12 and 13. The front-back direction, the left-right direction, and the up-down direction in the drawing are described for convenience in order to distinguish the directions.

図１３及び図１４に示すようにドクター装置２は、支持部材１０と、押さえ部材１１と、支点部材１２と、固定部材１３とを備えている。 As shown in FIGS. 13 and 14, the doctor device 2 includes a support member 10, a pressing member 11, a fulcrum member 12, and a fixing member 13.

図１３〜図１５に示すように、支持部材１０は、壁部１０３を有している。壁部１０３は、カム溝部１０１の上面の開口部の後端部１０ｂ側（つまり後側）に隣接して設けられる、押さえ部材１１側（つまり上側）に表面から突出する部位である。壁部１０３は、レバー部材１３１を後側に倒したときに、レバー部材１３１が配置される、対応する部分を除いて、左右方向に延在するように設けられている。壁部１０３は、カム溝部１０１とともに、カム部材１３０を回動可能に保持するための断面が略半円形状の溝部を構成するように設けられている。具体的には、壁部１０３の前側の表面が円弧状に形成されている。カム溝部１０１と壁部１０３によって形成される略半円形状の断面の直径は、カム部材１３０の円弧面１３０ｂの直径よりわずかに大きくなるように設定されている。 As shown in FIGS. 13 to 15, the support member 10 has a wall portion 103. The wall portion 103 is a portion that is provided adjacent to the rear end portion 10b side (that is, the rear side) of the opening on the upper surface of the cam groove portion 101 and projects from the surface to the pressing member 11 side (that is, the upper side). The wall portion 103 is provided so as to extend in the left-right direction except for the corresponding portion where the lever member 131 is arranged when the lever member 131 is tilted rearward. The wall portion 103, together with the cam groove portion 101, is provided so as to form a groove portion having a substantially semicircular cross section for holding the cam member 130 rotatably. Specifically, the front surface of the wall portion 103 is formed in an arc shape. The diameter of the substantially semicircular cross section formed by the cam groove portion 101 and the wall portion 103 is set to be slightly larger than the diameter of the arcuate surface 130b of the cam member 130.

本形態によれば、支持部材１０は、カム溝部１０１の後側に隣接して設けられる、上側に突出する壁部１０３を有している。そのため、カム部材１３０の脱落を抑え、カム部材１３０をカム溝部１０１内で確実に回動させることができる。 According to this embodiment, the support member 10 has a wall portion 103 that projects upward and is provided adjacent to the rear side of the cam groove portion 101. Therefore, the cam member 130 can be prevented from falling off, and the cam member 130 can be reliably rotated in the cam groove portion 101.

本発明は、第１及び第２実施形態にのみに限定されるものではなく、本発明の主旨を逸脱しない範囲で、これら形態を組み合わせることができる。 The present invention is not limited to the first and second embodiments, and these embodiments can be combined as long as the gist of the present invention is not deviated.

１・・・ドクター装置、１０・・・支持部材、１０ａ・・・先端部、１０ｂ・・・後端部、１０ｃ・・・屈曲部、１００・・・支持部、１００ａ・・・平坦面、１０１・・・カム溝部、１０２・・・ねじ孔部、１０３・・・壁部、１１・・・押さえ部材、１１ａ・・・一端部、１１ｂ・・・他端部、１１０・・・だるま孔部、１１０ａ・・・大径部、１１０ｂ・・・小径部、１１１・・・切り欠き部、１２・・・支点部材、１２０・・・頭部、１２１・・・軸部、１２２・・・ねじ部、１３・・・固定部材、１３０・・・カム部材、１３０ａ・・・平坦面、１３０ｂ・・・円弧面、１３０ｃ・・・孔部、１３１・・・レバー部材、１３１ａ・・・端部、ＤＢ・・・ドクターブレード 1 ... Doctor device, 10 ... Support member, 10a ... Tip part, 10b ... Rear end part, 10c ... Bending part, 100 ... Support part, 100a ... Flat surface, 101 ... cam groove, 102 ... screw hole, 103 ... wall, 11 ... pressing member, 11a ... one end, 11b ... other end, 110 ... daruma hole Part, 110a ... Large diameter part, 110b ... Small diameter part, 111 ... Notch part, 12 ... Supporting member, 120 ... Head, 121 ... Shaft part, 122 ... Threaded part, 13 ... Fixed member, 130 ... Cam member, 130a ... Flat surface, 130b ... Arc surface, 130c ... Hole, 131 ... Lever member, 131a ... End Department, DB ... Doctor blade

Claims

A support member having a support part that supports the doctor blade at the tip,
A band-shaped member having elasticity, which is provided so as to face the support member, the doctor blade is arranged between the support member, and a presser that presses the doctor blade against the support portion at one end in the width direction. Members and
Between the one end and the other end of the pressing member, the other end of the pressing member comes into contact with the pressing member on the anti-supporting member side of the pressing member, and the other end of the pressing member is displaced toward the anti-supporting member side. As a result, a fulcrum member having a fulcrum portion serving as a fulcrum for displacing the one end portion of the holding member toward the support member side,
A cam member that is rotatably held in a cam groove formed in the support member and that rotates to displace the other end of the holding member toward the anti-support member side.
By using the cam member to displace the other end of the pressing member toward the anti-supporting member side, the one end portion of the pressing member is displaced toward the supporting member side with the fulcrum portion as a fulcrum. A doctor device for fixing the doctor blade by pressing the doctor blade against the support portion by the one end portion of the pressing member.
The support member has a bent portion between the cam groove portion and the support portion at a position separated from the cam groove portion, and the rear end portion side of the bent portion is bent toward the counter-pressing member side. Doctor device.

The doctor device according to claim 1, wherein the support member is provided adjacent to the rear end side of the cam groove portion and has a wall portion protruding toward the pressing member side.