JPS6061443A - Roller for document conveyor - Google Patents

Abstract

PURPOSE:To reduce contamination of a document and to enable provision of a uniform nip pressure, by a method wherein the outer peripheral part of a roller is formed by a material having a smooth surface and high rigidity, and a part except the outer peripheral part is formed by a material being excellent in elasticity. CONSTITUTION:A document conveying device 1 consists of a drive roller 2, supporting integrally a plurality of rollers 4 by means of a shaft 3, and an idler 5 which supports integrally a plurality of rollers 7 by means of a shaft 6. In which case, the roller 4 is made of a metal, hard resin. And the roller 7 is formed with a central part 8 made of a material, such as rubber, soft resin, being excellent in elasticity, and an annular body 9, formed of a material, such as metals, hard resin, which has a smooth surface, being excellent modl release characteristics, and high rigidity, and is attached to the outer periphery of the roller. This, when a given pressure is applied between the drive roller 2 and the idler 5, causes elastic deformation of the central part 8 of the roller 7, resulting in the possibility to produce a uniform nip pressure between the two rollers 4 and 7.

Description

[Detailed description of the invention] Industrial use frequency division.

The present invention is based on the sled 'L7. Machine, Fakun p IJ etc. month”
Paper handling device ζ 1 used in 1 equipment (P) Original Jt:a lti Concerning the structure of the roller for the transport device ζ1' (B).

Conventional Technique Ya 1 Hara Sugito who uses "λ'" on the sidelines, etc.! As a feeding device, Fig. 1, Fig. 2 (G engineering in Fig. 2, ll-1 in Fig. 1,
The stone has the structure shown in the T-line arrow view. The corpse support 1 transporting device has rollers 03 and 03 at the bottom, which are integrally supported by shaft 02, and rollers 06 and rollers 06, which are integrally supported by shaft 05. Idler 0
The roller 03 is made of metal, hard resin, etc., and the rollers 10-06 are made of elastic VC-rich rubber, soft resin, etc. (4).

In this way, since roller 06 is full of bullets F+, when a predetermined pressure is applied between drive roller 01 and idler 04, a substantially uniform nip (7L) is created between all rollers 03 and 06.
i 7)) The pressure is applied and the document P&'f is transported in the correct posture without any skewing.

However, when the surface of the pencil-written document P falls onto the roller 06, the pencil dust is transferred to the roller 06 and its α
transfer powder 7) S again the original (11P imprint
Then lj;ji1. This will cause stains.

Therefore, the idler 04 is made of metal or hard resin. etc., 4" pencil powder
When there is 00A an 114 made of I'H material,
Jiffi problem solved 7) If the 51 shaft 05 is bent or the roller 06A is eccentric, etc.
All rollers 03, 06 A between T Uniform - fA - Nip 1.
'l- is a sword (cannot be obtained, the first line of the manuscript P, or the damaging force, caused).

The purpose of Imei's non-invention is that it was devised from a technical background, and its purpose is based on original knowledge, i1. (less and uniform nip pressure) obtained! t) A roller for protruding the document conveying device is provided.

: 56 light configuration The original document feeder of the present invention Ij 111'' - The surface is smooth and the surface is smooth, and the rigidity is high and the surface is sealed against the shape. , the outer periphery is formed, and the remaining part is made of a highly elastic material 331, and when a predetermined force 2 is applied between the opposing roller and the gap, the highly elastic material 331 is easily elastically deformed. Then, the document to be conveyed is held by the IJ with substantially uniform pressure over the entire width direction.

Embodiment 1 ζ An embodiment of the invention will be explained in accordance with FIG. 5 and FIG. .

The document conveyance device jtI includes a mantissa roller 4B, a drive roller 2 which is integrally supported by a shaft 3, and a fkJ'lit
1 Coke 7 beggar, 1liII + 6 to support and achieve 4
) It is composed of A11 and -R5. The roller 4 is made of metal, hard resin, etc., and the roller 7 is made of rubber, υ
Made of highly elastic materials such as zeta resin, 11 so and 1 center r'
rlI 8, and its outer periphery is made of metal, hard resin, etc., with a smooth surface, excellent mold releasability, and greater rigidity than the center S8. It's a 15'+T with 1 large J tree and 9 pieces attached.

1. The idler 5 has such a structure.2. -1 or “1.1
Even if the roller 7 is supported somewhat eccentrically with respect to the shaft 6, it is necessary to add the IL cannulation between the drive roller 2 and the idler 5. If it is placed, a - center of rough + flI 8 or i elastic change II", then approximately J4 + between all rollers 4.7
− A nip pressure can be obtained. force) is also the outer circumference of roller 7 +
The VIS has a smooth surface, excellent mold releasability, and is formed with a rigid ring-shaped body (9 or 2 tons), so there is no space between the drive roller 2 and the idler 5. '
Even if the surface of the pencil-written document P that is being conveyed during lTh time comes into contact with the roller 7, the pencil powder (sword-bond powder) will not be able to reach the roller 7σ
surface [1111shi・“1・, [<, therefore 1 Emperor Ki Island
&To be pollutedjjjT: () Stone λ in the general delivery.

As can be seen from the explanation of the effect of the invention, the uninvented original document conveying device r7. The river roller F41 has a flat outer surface, excellent 1-11 type properties, and is made of a material with high rigidity. ils
When a predetermined IL η is applied between the Y-shaped TN-C'E'l and the pair of rotating rollers, the monthly rate of elasticity is easily deformed elastically, and approximately the entire width of the rollers is expanded. Uniform nip pressure is obtained.
＞-Convenient fit without q and slanting
>-q OAlso, since the outer periphery of the roller for the document conveying device has a smooth surface and is made of a filter material that is resistant to mold 1/l- and has high rigidity; The surface of the 4th floor of Sahara is 1t thick with the roller, and the roller island';':
1 lji and pencil powder (sword-bon powder) - 1 D4 = J, and contamination of the manuscript can be effectively prevented.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 shows a longitudinal section of a known rotor Bl 4+j4 conveying device I. Figure 3 shows a vertical view of a known document conveying device.
1llllI + countryside, Figure 4 is IV - in Figure 3
FIG. 5 is a longitudinal sectional side view of the document conveying device v11 according to an embodiment of the present invention, and FIG. 6 is a view taken along the line IV. ■...Document transport device, 2...Drive roller, 3.
...Axis, 4...Roller, 5...Idler, 6...
・n1llll, 7...roller, 8...center, 9・
...Ring-shaped [71<. Agent Patent attorney Nozomi Ehara 2 people Figure 1 n6 3 Figure 2 Figure 3 0n Figure 4

Claims (1)

[Claims] A roller that rotates closely to the front surface of a manuscript is used in the paper processing device 11 of the 111 sheet processing device 11, and the roller has a smooth outer periphery, a smooth surface, and a mold releasable surface. Sex Kff1
．． It is assumed that the other parts 7 except the outer periphery 2 and the elastic ul are also formed monthly.