Recording medium conveying mechanism and recording medium processing device

Abstract

The present invention provides a recording medium conveying mechanism and a recording medium processing device. Recording medium can be clamped and transported uniformly regardless of size and thickness of the recording medium. A rotary shaft (36) of an upper conveying roll (27) which is used for clamping and transporting the recording medium (P)along with an lower part conveying roll (28) is provided with a compressed spiral spring (38) for applying force on the rotary shaft (36) toward the rotary shaft (34) of the lower part conveying roll (28). The end part of the rotary shaft (36) is inclinedly, movably and freely connected by a coupler. A cam (62) is arranged, the cam (62) is connected with a frame (56) for supporting the coupler (50), and the frame (60) is moved along the upper and lower direction.

Description

[0001] The invention relates to a recording medium conveying mechanism and a recording medium processing device. Background technique [0002] As a transport mechanism for transporting a recording medium such as recording paper or a passbook, a transport mechanism that transports the recording medium by nipping it between a pair of transport rollers is widely used. Among such recording medium conveying mechanisms, there is known a sheet conveying device that opens the nip before the leading end of the recording medium reaches the nip of the rollers, and the roller pair is positioned between the rollers of the recording medium. The recording medium is clamped when the leading end passes through the nip portion of the rollers (Patent Document 1). [0003] However, when conveying a recording medium with a narrow width, the rotation axis of the rollers is inclined due to the height difference between the portion that holds the recording medium and the portion that does not hold th...

AI Technical Summary

Problems solved by technology

[0003] However, in the case of conveying a recording medium with a small width, the rotation axis of the roller is inclined due to the height difference between the part that holds the recording medium and the part that does not hold the recording medium.

Therefore, there is a possibility that the recording medium cannot be clamped uniformly, resulting in poor conveyance.

And, when the thickness is different in the width direction of the recording medium, there is also the possibility that the thick-walled part and the thin-walled part cannot be sandwiched uniformly, and conveyance failure may occur.

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