JPH07179240A - Driven roller for carrying paper sheet - Google Patents

Abstract

PURPOSE:To reduce constitutive parts, and enhance an assembling characteristic at low cost by providing elasticity for a rib to connect an outer ring to an inner ring of a driven roller. CONSTITUTION:In this paper sheet carrying driven roller 1, elasticity is provided for a rib 4 to connect an outer ring 2 coming into contact with a medium 6 to an inner ring 3 to receive a support shaft 7, and in a condition where the ribe 4 is deformed, the driven roller l is energized to the driving roller 5 side. This rib 4 is formed of moldings of polypropylene.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driven roller for conveying paper sheets, and more particularly to a driven roller for conveying paper sheets which is composed of an elastic rib.

[0002]

2. Description of the Related Art Conventionally, in a driven roller for conveying paper sheets of this type, the driven roller 14 is a rotary arm 9 as shown in FIG.
It is attached to the rotary shaft 10 by the support shaft 7 and the E ring 8, and the positioning pin 12 regulates the shaft in the axial direction. Further, the spring 1 is attached to the rotary shaft 10.
By inserting 1 into the rotating arm 9 and hooking the other into the spring stop pin 13 attached to the rotating shaft 10, the driven roller 14 is biased to the main driving roller.

[0003]

This conventional driven roller for conveying paper sheets has a large number of constituent parts, which has a great influence on the number of assembling steps and the cost.

[0004]

A driven roller for conveying paper sheets according to the present invention is elastically urged toward the peripheral surface of a main driving roller and is rotated by the rotational driving force of the main driving roller to support an outer ring contacting a medium. The rib connecting the inner ring that receives the shaft has elasticity, and the rib is urged toward the driving roller in a deformed state.

Further, the driven roller for conveying paper sheets according to the present invention is characterized in that the rib is formed by molding polypropylene.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of an embodiment of the present invention. Referring to FIG. 1, the driven roller 1 is composed of an outer ring 2 that is in contact with the medium, an inner ring 3 that receives a support shaft 7, and an elastic rib 4 that connects the outer ring 2 and the inner ring 3. The ribs 4 can be manufactured by molding using polypropylene as a material.

2 (A) and 2 (B) are explanatory diagrams of operations during medium conveyance. In FIG. 2A, since the medium 6 has not been conveyed yet, the driven roller 1 is directly biased by the driving roller 5. In FIG. 2B, the medium 6 is conveyed by the rotation of the driving roller 5. Since the support shaft 7 of the main driving roller 5 is fixed and the driven roller 5 itself is not deformed, the force for pushing down the driven roller 1 by the thickness of the medium 6 is transmitted to the outer ring 2 and the rib 4 which is an elastic body is formed. Transform it. At this time, the driven roller 1 can always press the outer ring 2 against the medium 6 and convey it with an appropriate pressing pressure regardless of the thickness of the medium 6.

[0008]

As described above, according to the present invention,
By providing elasticity to the rib connecting the outer ring contacting the medium and the inner ring receiving the support shaft and urging the rib toward the main driving roller in a deformed state, the driven roller can be obtained at a low cost and easily assembled.

[Brief description of drawings]

FIG. 1 is a schematic view of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of this embodiment.

FIG. 3 is a schematic view of a conventional example.

[Explanation of symbols]

 1 Driven Roller 2 Outer Ring 3 Inner Ring 4 Rib 5 Driven Roller 6 Medium 7 Support Shaft 8 E Ring 9 Rotating Arm 10 Rotating Shaft 11 Spring 12 Positioning Pin 13 Spring Stop Pin 14 Driven Roller

Claims (2)

[Claims] 1. A rib that is elastically biased toward the peripheral surface side of the main driving roller and is rotated by the rotational driving force of the main driving roller to connect the outer ring contacting the medium and the inner ring receiving the support shaft with elasticity, and the rib is A driven roller for conveying paper sheets, which is urged toward the driving roller in a deformed state. 2. The driven roller for conveying paper sheets according to claim 1, wherein the rib is formed by molding polypropylene.