JPS6186733U

JPS6186733U -

Info

Publication number: JPS6186733U
Application number: JP16917284U
Authority: JP
Priority date: 1984-11-09
Filing date: 1984-11-09
Publication date: 1986-06-06

Description

[Brief explanation of the drawing]

第１図は、本考案のヒンジ装置を採用した原稿
送り装置の外観斜視図、第２図は原稿自動供給装
置の概略的縦断正面図、第３図は、原稿自動供給
装置の要部である原稿搬送集積ユニツトを開いた
状態の斜視図、第４図は、原稿搬送集積ユニツト
の要部である原稿搬送ユニツト全体の斜視図、第
５図は、原稿搬送ユニツトの搬送ベルトを取外し
た状態の斜視図、第６図は、第５図の一部拡大図
、第７図は、原稿搬送集積ユニツトのカバーを裏
面側から見た斜視図、第８〜第１０図は、本発明
のヒンジ装置の一実施例を示すもので、第８図は
、ヒンジ装置を一部省略して示す概略的側面図、
第９図は、同じくヒンジ装置を一部切欠して示す
概略的平面図、第１０図は、同じくヒンジ装置の
概略的斜視図である。３１…ヒンジ装置、５０…連結固定部材、５１
…連結可動部材、５２…支軸、５７…引張りばね
、５８…モーメント発生手段、５９…回転モーメ
ント補正手段、６０…カム、６０ａ…カム面、６
１…カムフオロア、６４…引張ばね、６５…回転
モーメント吸収手段、６０ｂ…凹陥部。 FIG. 1 is an external perspective view of a document feeder that employs the hinge device of the present invention, FIG. 2 is a schematic longitudinal sectional front view of the automatic document feeder, and FIG. 3 is a main part of the automatic document feeder. FIG. 4 is a perspective view of the document conveyance unit with the document conveyance and accumulation unit open. FIG. 4 is a perspective view of the entire document conveyance unit, which is the main part of the document conveyance and accumulation unit. FIG. 6 is a partially enlarged view of FIG. 5, FIG. 7 is a perspective view of the cover of the document conveyance and accumulation unit seen from the back side, and FIGS. 8 to 10 are the hinge device of the present invention. Fig. 8 is a schematic side view showing a hinge device partially omitted;
FIG. 9 is a schematic plan view showing the hinge device with a portion cut away, and FIG. 10 is a schematic perspective view of the hinge device. 31... Hinge device, 50... Connection fixing member, 51
...Connection movable member, 52... Support shaft, 57... Tension spring, 58... Moment generating means, 59... Rotating moment correcting means, 60... Cam, 60a... Cam surface, 6
DESCRIPTION OF SYMBOLS 1... Cam follower, 64... Tension spring, 65... Rotational moment absorption means, 60b... Recessed part.

Claims

[Scope of Claim for Utility Model Registration] (1) A connecting fixed member, a connecting movable member rotatably attached to the connecting fixed member via a support shaft, and a structure capable of resisting the force applied to the connecting movable member. a cam having a cam curve in which a distance from a supporting shaft provided on the side of the connecting fixed member is changed in accordance with a change in rotational moment; and a cam having a cam curve on the side of the movable connecting member and a cam follower that is always urged to be in rolling contact with the cam surface, and corrects the rotational moment relative to the support shaft that changes depending on the opening angle of the movable connecting member, so that the rotational moment can be adjusted over almost the entire area except the base end position. It is characterized by comprising a rotational moment correction means for balancing, and a rotational moment absorption means for absorbing the rotational moment of the moment generation means relative to the support shaft when the rotational base end position of the connected rotational member is reached. Hinge device. (2) The rotational moment correction means is provided on the side of the connecting fixed member, and includes a cam having a cam curve whose distance from the supporting shaft changes according to changes in the rotational moment, and a cam that is provided on the side of the connecting movable member and always on the cam surface. A utility model according to claim 1, characterized in that the cam follower is biased to roll into contact with the cam follower, and the rotational moment absorbing means is a recess formed on the cam surface so that the cam follower falls into the cam follower. Hinge device.