JPS6190946A - Transfer device of electronic copier - Google Patents

Abstract

PURPOSE:To prevent a paper transfer unit holding leaf spring from permanent deformation and hold the paper transfer unit always at a predetermined position by providing an abutting member abutting against a transfer base plate within the elastic deformation limit of said leaf spring. CONSTITUTION:An abutting member 21 abutting against a bend 20 formed in a transfer base plate 7 of a paper transfer unit 3 is dimensioned to abut against the bend 20 within the elastic deformation limit of a paper transfer unit holding leaf spring 10. When a transfer lever 17 is pivoted, a first abutting member 22 mounted on a paper transfer unit lifting member 18 contacts slidably said spring 10 to push up said unit 3 so that a transferring device is used under such condition. Then, when said unit 3 vibrates, said spring 10 receives its load while being prevented from the permanent deformation since a second abutting member 21 abuts against the bend 20.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a conveying device for an electronic copying machine.The structure of a conventional example and its problems.As shown in FIG. It is composed of a unit 2, a paper conveying unit 3, a developing unit (not shown) including a drum 4, a fixing unit 5, a paper ejecting section 6, and the like. As shown in FIG. 2, the paper conveyance unit 3 includes a conveyance board 7, a paper conveyance belt 8, a suction/hole 9, a paper conveyance belt drive roller (not shown),
The paper conveyance unit 3 is composed of a holding plate spring 10, a transfer charger 11, a peeling charger 12, etc., and one end of the paper conveyance unit 3 is rotatably mounted on a bearing portion 1 in order to remove paper when paper is jammed.
The paper carrying lever 17 is rotatably installed via a bearing 16 provided on the bottom plate 16 so that the other end can be moved up and down to the support tongue by a shaft 14 held by the paper. Leaf spring receiver 1 attached to the transport unit elevating member 18
9, the paper transport unit is held and held via a paper transport unit holding leaf spring 10fc attached to the bottom of the paper transport unit.

When a paper jam occurs, by rotating the conveyance lever 17, the paper conveyance unit holding plate spring 1 is released by the plate spring receiver 19.
0 is released, the other end of the paper conveyance unit 3 is lowered, and the paper is removed to clear the paper jam.

As explained above, since the other end of the paper transport unit 3 is held by the paper transport unit holding leaf spring 10 and the leaf spring receiver 19, products may fall during cargo handling work, and vibrations may occur during transport. If the paper conveyance unit holding plate spring 1o is bent and permanently deformed due to (vertical vibration), the paper conveyance unit cannot be held in a predetermined position, resulting in an abnormality in paper conveyance. Was.

OBJECTS OF THE INVENTION The present invention aims to eliminate the drawbacks of the above-mentioned conventional examples, and provides a transport device for an electronic copying machine that has a simple structure and prevents deformation of the paper transport unit holding plate spring. It is.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a paper transport unit including a paper transport unit holding plate spring disposed on a transport board, and a paper transport unit rotatably supported on a shaft and mounted on the paper transport unit holding plate spring. A leaf spring receiving member comprising a first abutting member that makes sliding contact and a second abutting member that makes contact with the conveyance board of the paper conveyance unit within the elastic deformation limit of the paper conveyance unit holding leaf spring. DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the same reference numerals are given to the four places mentioned above.

3, 4, and 5 show enlarged cross-sectional views of essential parts for detailed explanation of the present invention, and in the figures, reference numeral 20 indicates a bent portion formed on the conveying substrate 7 of the paper conveying unit 3. , 21 is a contact member formed integrally with the leaf spring receiving member 19, and whose tip is brought into contact with the above-mentioned bent portion 2o. This contact member 21 is a paper conveying unit holding plate spring 1o.
It is formed to have a dimension that is within the elastic deformation limit of , that is, before permanent deformation occurs, it comes into contact with the bending portion 20 of the transfer substrate 7.

Next, the operation will be explained. When the conveyance lever 1 shown in FIG.
comes into sliding contact with the paper conveyance unit holding leaf spring 10 and pushes up the paper conveyance unit 3, and in this state the conveyance device is ready for use. At this time, as shown in FIG. 5, when the paper conveyance unit 3 vibrates, the paper conveyance unit holding plate spring 1o receives the load. 7, permanent deformation is prevented. Therefore, the paper conveyance unit is always held at the fixed position R, and normal conveyance operation can be maintained.

Note that in the above description, the first contact member and the second contact member are integrated into a leaf spring receiving member, but it is possible to easily configure them as separate members, but there are limitations. isn't it. Furthermore, the bent portion of the transport board is not limited to this, and the contact member may be brought into direct contact with the transport board.

Effects of the Invention As detailed above, according to the present invention, permanent deformation of the paper transport unit holding leaf spring can be prevented by providing a contact member that comes into contact with the transport board within the elastic deformation limit of the paper transport unit holding leaf spring. This can be prevented, and the paper transport unit can always be held at a predetermined position, so paper transport can be carried out favorably.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of a conventional electronic copying machine;
Figure ' is a perspective view of the paper conveyance unit when the electronic copying machine is in use, Figure 3 is an enlarged cross-sectional view of the main parts of the paper conveyance unit in the holding state showing an embodiment of the electronic copying machine of the present invention, and Figure 4 is 5 is a side view thereof, and FIG. 5 is an enlarged cross-sectional view of a main part showing the state of the paper conveyance unit during fluctuation. 3... Paper transport unit, 7... Transport board, 1°... Paper transport unit holding plate spring, 17
...Transport lever, 18...Paper transport unit elevating member, 19...Plate spring receiver, 20...
...Bending portion, 21.22...Abutment member.

Claims (1)

[Claims] A paper transport unit including a paper transport unit holding leaf spring disposed on a transport board, a first abutting member rotatably supported on a shaft and slidingly in contact with the paper transport unit holding leaf spring, and transport of the paper transport unit. A conveying device for an electronic copying machine, comprising a plate spring receiving member having a second abutting member that abuts the substrate within an elastic deformation limit of the paper conveying unit holding plate spring.