JPS6416355U

JPS6416355U -

Info

Publication number: JPS6416355U
Application number: JP11005287U
Authority: JP
Priority date: 1987-07-20
Filing date: 1987-07-20
Publication date: 1989-01-26
Also published as: JPH0411812Y2

Description

[Brief explanation of the drawing]

第１図Ａは本考案の一実施例によるプレスロー
ラ装置を示した要部側面図、第１図Ｂは同プレス
ローラ装置に用いられる左右のプレスローラアー
ムを示した側面図、第２図は第１図Ａの―線
に沿つた要部切欠平面図、第３図は第２図の―
線矢視による左側面図、第４図は従来のプレス
ローラ装置を備えた謄写輪転機の構成説明図であ
る。１……版胴、２……プレスローラ、３……スプ
リング、４Ａ……左側のプレスローラアーム、４
Ｂ……右側のプレスローラアーム、５……アーム
回動支軸、１３……プレスローラの接離作動機構
、１４……鍵穴、１４ａ……穴幅の狭い下穴、１
４ｂ……穴幅の広い上穴、１５……アームステイ
、１５ａ……アームステイの先端掛止爪、１６…
…プレスローラアームのローラ軸受部、１７，１
８……騰写輪転機の両側フレーム、１９……カム
アーム、２０……回転カム。 FIG. 1A is a side view of essential parts of a press roller device according to an embodiment of the present invention, FIG. 1B is a side view of left and right press roller arms used in the press roller device, and FIG. Fig. 1 is a cutaway plan view of the main part along the line A, and Fig. 3 is a plan view of the main part along line A, and Fig. 3 is the - of Fig. 2.
FIG. 4, a left side view taken along the line, is an explanatory diagram of the configuration of a rotary copying machine equipped with a conventional press roller device. 1... Plate cylinder, 2... Press roller, 3... Spring, 4A... Left press roller arm, 4
B...Right press roller arm, 5...Arm rotation support shaft, 13...Press roller contact/separation operation mechanism, 14...Keyhole, 14a...Narrow pilot hole, 1
4b... Upper hole with wide hole width, 15... Arm stay, 15a... Arm stay end latching claw, 16...
...Roller bearing part of press roller arm, 17,1
8...Both frames of the rotary press, 19...cam arm, 20...rotating cam.

Claims

[Scope of claims for utility model registration] (1) A press roller disposed below the plate cylinder,
A pair of left and right press roller arms rotatably support this press roller and are biased to rotate by a spring so that the press roller is pressed against the plate cylinder, and a rotation support shaft of this press roller arm is used during printing. In a press roller device of a rotary copying machine, which is equipped with a press roller contact/separation mechanism that rotates the press roller so that the press roller is pressed against the plate cylinder and separated from the plate cylinder when not printing, a hole is formed in at least one of the left and right press roller arms. The arm pivot support includes a keyhole in which a narrow pilot hole and a wide upper hole are connected, and an arm stay that has a removable latch claw that is engaged with the pilot hole through the upper hole of the keyhole. At the same time as fixing the press roller arm to the shaft, insert either the left or right press roller arm with the keyhole into the rotation support shaft so that it can rotate around the axis and move in the axial direction. Push down and rotate by hand against the spring force and slide in the axial direction to disengage the keyhole of the press roller arm from the arm stay and remove the roller bearing part of the arm from the end of the roller shaft. A press roller device for a rotary copying machine, characterized in that the press roller can be easily removed. (2) The left and right press roller arms are fitted into the rotation support shaft so that they can rotate around their axes, and the left and right press roller arms are both provided with keyholes. A press roller device for a rotary copying machine according to claim 1, wherein a pair of left and right arm stays that engage with a keyhole are fixed to both ends of an arm rotation support shaft. (3) A cam arm in which the press roller contact/separation mechanism is fixed at a position on the arm side where the arm rotation support shaft does not move, and the press roller is pressed against the plate cylinder during printing and is separated from the plate cylinder when not printing. A press roller device for a rotary copying machine according to claim 1, characterized in that the press roller device is comprised of a rotary cam that is operated to perform the following actions.