JPH0265540U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は側面側からみた概略的説明図、第２図
は中央縦断正面図、第３図は胴部における平坦部
分の平面図、第４図は同じく平坦部分の拡大縦断
面図、第５図は封筒に折り線をつけるときの状態
の説明図、第６図は折り線をつける前の状態にお
ける封筒の平面図、第７図及び第８図は従来の底
折り用ドラムの説明図、第９図は従来の底折り用
ドラムによつて折線をつけた封筒の斜視図である
。 １……底折り用ドラム本体、２……胴部、３…
…平坦部、４……Ｖ字状の溝、５……吸引口、６
……切欠部、７……回転軸、７ａ……回転軸の突
出端、９……彎曲した爪部材、１０……回転軸、
１１……機枠、１３……揺動レバー、１４……ロ
ーラ、１５……円弧状のカム板、１８……ストツ
カー。 Fig. 1 is a schematic explanatory view as seen from the side, Fig. 2 is a central longitudinal sectional front view, Fig. 3 is a plan view of a flat part of the body, Fig. 4 is an enlarged longitudinal sectional view of the flat part, and Fig. 5 The figure is an explanatory diagram of the state when folding lines are attached to the envelope, FIG. 6 is a plan view of the envelope in a state before folding lines are attached, FIGS. 7 and 8 are explanatory diagrams of a conventional bottom folding drum, FIG. 9 is a perspective view of an envelope with a fold line formed by a conventional bottom folding drum. 1...Drum body for bottom folding, 2...Body part, 3...
... Flat part, 4 ... V-shaped groove, 5 ... Suction port, 6
... Notch, 7 ... Rotating shaft, 7a ... Protruding end of the rotating shaft, 9 ... Curved claw member, 10 ... Rotating shaft,
11... Machine frame, 13... Rocking lever, 14... Roller, 15... Arc-shaped cam plate, 18... Stocker.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 胴部の外周を切線方向に所要幅に切欠して平坦
部を形成すると共に該平坦部の胴部回転方向の先
端部にＶ字状の溝を設け、更に前記平坦部の前記
Ｖ字状の溝に近い部分に所定のタイミングで吸引
を行う吸引口を設けた底折り用ドラム本体と、後
記回転軸に基部を固着し、該回転軸の回転を通し
て胴部における前記平坦部の回転方向前部に設け
られた切欠部内を垂直方向に回動する、先端部が
胴部の前記平坦部側に向けて彎曲した爪部材とか
らなる輪転製袋機の底折り装置における底折り用
ドラム。 A flat part is formed by cutting the outer periphery of the body part to a required width in the cutting line direction, and a V-shaped groove is provided at the tip of the flat part in the direction of rotation of the body part, and further, the V-shaped groove of the flat part is A bottom folding drum main body is provided with a suction port that performs suction at a predetermined timing in a part close to the groove, and a base is fixed to a rotating shaft described later, and through rotation of the rotating shaft, the front part of the flat part in the rotational direction of the body. A bottom folding drum in a bottom folding device of a rotary bag making machine, comprising a claw member whose tip part is curved toward the flat part side of a body part, and which rotates in a vertical direction within a notch provided in the body part.