JPS62167454U

JPS62167454U -

Info

Publication number: JPS62167454U
Application number: JP5412686U
Authority: JP
Priority date: 1986-04-10
Filing date: 1986-04-10
Publication date: 1987-10-23

Description

[Brief explanation of the drawing]

第１図及び第２図は夫々この考案にかかる画像
入力装置のスキヤナの構成を示す正面図及び側面
図、第３図はこの考案に係る増速機構を示す正面
図、第４図は考案に係る他の実施例の増速機構等
を示す正面図、第５図は第４図の増速機構を示す
斜視図、第６図はこの考案に係るさらに他の実施
例の増速機構等を示す正面図、第７図は従来型の
画像入力装置のスキヤナの構成を示す正面図、第
８図は従来型のロータリエンコーダを示す説明図
である。１…スキヤナ、２…ケーシング、３，１２，２
０…ローラ、１２，１８…記録媒体、５…光学系
、６…ＣＣＤラインセンサ、１７…マーク、９，
１６，２２…ロータリエンコーダ、７，１２ａ，
２０ａ…傘歯車、８，１１，１９…増速機構、α
…光路。 1 and 2 are a front view and a side view, respectively, showing the configuration of a scanner of an image input device according to this invention, FIG. 3 is a front view showing a speed increasing mechanism according to this invention, and FIG. 5 is a perspective view showing the speed increasing mechanism of FIG. 4, and FIG. 6 is a front view showing the speed increasing mechanism of another embodiment according to this invention. 7 is a front view showing the configuration of a scanner of a conventional image input device, and FIG. 8 is an explanatory diagram showing a conventional rotary encoder. 1...Scanner, 2...Casing, 3,12,2
0... Roller, 12, 18... Recording medium, 5... Optical system, 6... CCD line sensor, 17... Mark, 9,
16, 22... rotary encoder, 7, 12a,
20a...Bevel gear, 8, 11, 19... Speed increase mechanism, α
...light path.

Claims

[Claims for Utility Model Registration] A roller attached to a casing of a scanner is rotated along a recording medium so that the scanner travels and scans the recording medium, and the scanning surface is An image input device in which a one-dimensional line sensor reads information from a recording medium via an optical system;
A rotary encoder having marks for sub-scanning speed detection formed on the outer edge side so as to partially overlap on the optical path is attached to the casing, and the inner surface side of the roller is protruded so that the protruding surface A bevel gear is formed on the edge side, and in order to rotate the rotary encoder at a rotational speed higher than that of the roller, a speed increasing mechanism that rotates when the rotational force from the bevel gear is transmitted is placed on the optical path of the optical system. An image input device characterized in that the image input device is provided at a position apart from the image input device.