JPH0453737U

JPH0453737U -

Info

Publication number: JPH0453737U
Application number: JP9561090U
Authority: JP
Priority date: 1990-09-13
Filing date: 1990-09-13
Publication date: 1992-05-08

Description

[Brief explanation of the drawing]

第１図〜第４図はこの考案によるイメージスキ
ヤナの紙送り装置の一実施例を示す図で、第１図
は要部分解斜視図、第２図は軸受けとローラ軸の
関係を示す図、第３図は長穴形状算出説明図、第
４図は長穴の具体例を示す軸受けの正面図、第５
図はこの考案の他の実施例を示す軸受けとローラ
軸の関係を示す図、第６図〜第１２図は従来のイ
メージスキヤナの紙送り装置を示す図で、第６図
は原稿移動形のイメージスキヤナの斜視図、第７
図は第６図の横断面図、第８図は駆動部の正面図
、第９図は駆動部の縦断面図、第１０図は要部分
解斜視図、第１１図は第１０図の要部横断面図、
第１２図は軸受けとローラ軸の関係を示す図であ
る。図中、１はスキヤナ部、２は紙送り部、４は原
稿、７，８は紙送りローラ、７ａ，８ａはローラ
軸、９はモータ、９ａはモータ軸、１０〜１２は
歯付きプーリ、１３は歯付きベルト、１７は引き
ばね、２１，２２は軸受け、２１ａ，２２ａは長
穴である。なお、図中同一符号は同一又は相当部
分を示す。 Figures 1 to 4 are diagrams showing an embodiment of the image scanner paper feeding device according to this invention. Figure 1 is an exploded perspective view of the main parts, and Figure 2 is a diagram showing the relationship between the bearing and the roller shaft. , Fig. 3 is an explanatory diagram for calculating the shape of an elongated hole, Fig. 4 is a front view of a bearing showing a specific example of an elongated hole, and Fig. 5
The figure shows the relationship between the bearing and the roller shaft of another embodiment of this invention. Figures 6 to 12 are diagrams showing the paper feeding device of a conventional image scanner, and Figure 6 is a document moving type. Perspective view of the image scanner, No. 7
The figure is a cross-sectional view of Fig. 6, Fig. 8 is a front view of the drive section, Fig. 9 is a longitudinal sectional view of the drive section, Fig. 10 is an exploded perspective view of the main part, and Fig. 11 is the main part of Fig. 10. cross-sectional view,
FIG. 12 is a diagram showing the relationship between the bearing and the roller shaft. In the figure, 1 is a scanner section, 2 is a paper feed section, 4 is a document, 7 and 8 are paper feed rollers, 7a and 8a are roller shafts, 9 is a motor, 9a is a motor shaft, 10 to 12 are toothed pulleys, 13 is a toothed belt, 17 is a tension spring, 21 and 22 are bearings, and 21a and 22a are elongated holes. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

The shafts of paper feed rollers arranged in parallel are supported by bearings having elongated holes that are inclined with respect to the vertical direction,
An image scanner in which an elastic body is provided to apply tension in a direction to bring the roller shafts closer to each other, a belt driven by a motor is endlessly wound around the roller shaft, and the document is moved by the paper feed roller, A paper feeding device for an image scanner, characterized in that the shape of the elongated hole in the bearing is set so that the overall length of the belt does not change even if the roller shaft moves within the elongated hole.