JPH04105035U - Transport roller discharge prevention structure - Google Patents

Abstract

(57) [Summary] [Purpose] When a paper sheet charged with static electricity is transported by a conductive transport roller, the transport roller is also charged, and after the paper sheet has passed, this transport roller and this By avoiding discharge between opposing conductive parts, malfunction of the circuit due to discharge is prevented. [Structure] A paper sheet conveying roller formed by rotatably supporting a roller made of a conductive material on a support shaft in a non-conductive state, the roller and a conductor portion opposite the roller. The present invention is characterized in that it is a discharge prevention structure for a conveying roller, in which the roller and the conductor portion are made to have the same potential by providing conduction between the conductive portion and the conductive portion.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea, for example, configures a conveyance roller by having a driving roller and a driven roller facing each other. However, when paper sheets are transported by these transport rollers, static electricity charged on the paper sheets is generated. Transport roller discharge prevention structure that charges the transport roller and prevents it from discharging. Regarding.

0002

[Conventional technology]

The above-mentioned driving roller and driven roller are made of a conductive material and placed opposite each other, and When constructing a conveyance roller that conveys paper sheets, use a simple metal ball as the driven roller. The bearing is often supported by a non-conductive support shaft.

0003

[Problem that the idea aims to solve]

As mentioned above, if the driven roller is configured with ball bearings, static electricity will When paper sheets such as banknotes are transported, this static electricity charges the driven roller, causing the paper sheets to If the drive roller is made of conductive material, this drive roller Electric discharge may occur between the roller and the driven roller. Of course, the above-mentioned discharge occurs not only between the driving roller but also between the driven roller and other areas. It also occurs between conductive parts. When discharge occurs in this way, the problem is that the circuit of the device malfunctions due to this discharge. It had Therefore, this idea prevents the above-mentioned discharge and prevents malfunction of the circuit. The purpose of the present invention is to provide a structure for preventing discharge of a conveyance roller.

0004

[Means to solve the problem]

This idea allows a roller made of conductive material to rotate around a spindle in a non-conductive state. A roller for conveying paper sheets formed by supporting the roller, and a conductor installed opposite to the roller. A special feature is that the conveyor roller has a discharge prevention structure that is electrically connected to the body part by a conductive means. be a sign.

[0005]

[Effect]

The discharge prevention structure of the conveyance roller of this invention consists of the roller and the conductor facing this roller. The two parts are electrically connected by a conductive means, so that they have the same potential, and there is a discharge is avoided.

[0006]

[Effect of the idea]

As a result of the above, according to this invention, electric discharge between the roller and the conductor part is avoided. , malfunction of the circuit due to discharge is prevented, and the structure is simple.

[0007]

【Example】

An embodiment of this invention will be described in detail below based on the drawings. The drawing shows the discharge prevention structure of the transport roller. The roller 10 is made of a conductive material such as metal and is fixed to a suitably installed drive shaft 11. By driving the drive shaft 11 with an appropriate drive source, the drive-side conveyance roller 10 can be driven. can be done.

[0008] A driven side conveying roller 12 is provided opposite to the upper surface side of the driving side conveying roller 10. This driven-side conveyance roller 12 is constructed with ball bearings, and is made of metal, etc. It is formed of an outer link 13 and a ball 14 made of a conductive material, and is made of a non-conductive material. It is rotatably supported on a support shaft 15 formed in the same manner as shown in FIG.

[0009] The above-mentioned support shaft 15 is fixed to the free end of the L-shaped lever 16, and the shaft 15 is fixed to the free end of the L-shaped lever 16. The intermediate part is supported by a support shaft 17 on an appropriate fixed part, and a spring 18 is attached to the upper end of the lever 16. The conveyance roller 12 on the driven side is urged against the conveyance roller 10 on the driving side.

0010 The upper circumferential surface of the driven conveyance roller 12 mentioned above is made of conductive plastic. This contact body 19 is brought into sliding contact with the free end side of the leaf spring 20. The proximal end of this leaf spring 20 is fixed to the lever 16 mentioned above with screws etc. The contact body 19 is pressed against the driven conveyance roller 12 side.

[0011] One end of a conductive wire 21 is connected to the aforementioned contact body 19, and the other end of this conductive wire 21 is connected to the conveyance path. bypassing the drive shaft 11 of the conveyance roller 10 on the other drive side, and The rollers 10 and 12 are electrically connected via a contact body 19 and a conductive wire 21.

0012 The conveying rollers 10 and 12 configured in this manner convey paper sheets A such as banknotes between the opposing rollers. However, the paper sheet A is charged with static electricity, and furthermore, both the conveyance rollers 10 and 1 Even if roller 2 is charged, both conveyor rollers 10 and 12 are connected by conductive wire 21 and have the same potential. Therefore, even if paper sheet A passes through and both conveyance rollers 10 and 12 come into contact, electric discharge will not occur. There's nothing to do. Therefore, malfunction of the circuit due to discharge is prevented.

[0013] In addition, in the above-mentioned embodiment, the discharge between the conveyance rollers 10 and 12 was explained. , if discharge occurs between the conveyor roller 12 and other conductor parts, the same What is necessary is to configure it so that it is at a potential. Further, in the above embodiment, both the conveyance rollers 10 and 12 were electrically connected, but both conveyance rollers 10 and 12 were electrically connected. The feed rollers 10 and 12 may be grounded. In the correspondence between the structure of this invention and the structure of the embodiment, The roller of this invention corresponds to the conveyance roller 12 of the embodiment, Similarly below, The spindle corresponds to the spindle 15, The conductor portion corresponds to the transport roller 10 or another conductor portion, The conduction means corresponds to the contact body 19 and the conducting wire 21, This invention is not limited to the configuration of the above-described embodiment.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view of a conveyance roller.

[Explanation of symbols]

12... Driven side conveyance roller 15... Support shaft 19...Contact body 21...Conducting wire

Claims (1)

[Scope of utility model registration request] 1. A paper sheet conveyance roller formed by rotatably supporting a roller made of a conductive material on a support shaft in a non-conductive state, the roller and a conductor portion disposed opposite the roller. A discharge prevention structure for the transport roller that is electrically connected by a conductive means.