JPS6031469A - Collator - Google Patents

Abstract

PURPOSE:To prevent the generation of vibration and noise and prevent deterioration of a copied image due to vibration by rotatably installing a spiral shaft which is engaged with a part of a business-sheet accommodation tray and vertically moves the business-sheet carrying-in side of the tray onto the business-sheet carrying-in side of the tray. CONSTITUTION:A collator 1 is installed onto the business-sheet discharge side of of a copying machine 2, and a guide plate 4 for business sheets 3 and a transport roller 6 for feeding in succession the business sheets 3 into each accommodation tray 5 are arranged. In this case, pins 7 are projected at the both edges on the carrying-in side edge part for the business sheets 3 in each accommodation tray 5 and engaged with the concaved grooves 8a of a pair of spiral shafts 8 erected in parallel each other on the business-sheet discharge side of the transport roller 6. The upper and the lower edges of the spiral shaft 8 are accommodated into a cylindrical collar 9 fixed onto the frame 1a, and the spiral shaft can be revolved normally and reversely by a motor 10. Therefore, the business-sheet carrying-in side of each accommodation tray 5 is raised in each accommodation for the business sheets 3 by the spiral shaft 8, and generation of vibration and noise during operation is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a collating device for collating sheets discharged from a copying machine into respective paper storage trays.

Prior Art Conventionally, as a collating device that is connected to a copying machine and collates sheets discharged from the copying machine into respective paper storage trays, the paper loading side of the paper storage trays provided in multiple stages is connected to There is one that moves it upwards, and in the past this movement was done using a cam, Geneva gear, etc.

For this reason, vibrations generated during movement are transmitted to the copying machine, which adversely affects the formation of one image, and also causes problems such as large noise.

Purpose of the Invention The present invention has been made for the purpose of improving such problems, and provides a collating device that can move paper storage trays without generating vibration or noise, thereby preventing the deterioration of copied images due to vibration. This is what I am trying to do.

Structure of the Invention A spiral shaft is provided on the paper input side of the paper storage tray provided in multiple stages, and the spiral shaft allows the paper input side of the paper storage tray to be moved up and down without vibration or noise. It's a collation device.

Embodiment - Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
In the figure 1. is the main body of this device attached to the paper output side of the copying machine 2. It is box-shaped and has the copying machine 2 inside.
A guide plate 4 that guides all of the discharged paper 3, and a conveyance roller 6 that sequentially feeds the paper 3 guided by the guide plate 4 to each paper storage tray 5 are provided.

The paper storage tray 5 is provided in a plurality of upper and lower stages, with bins 7 protruding from both sides of the paper 3 carrying-in side end.
They are engaged in grooves 8α of a pair of helical shafts 8 that are erected parallel to each other on the paper discharge side of the conveyance roller 6.

The helical shaft 8 is rotatably housed in a cylindrical force 2-9 whose upper and lower ends are fixed to the frame 1α, and each collar 9
The tip of the bottle 7 is inserted into the slit 9α formed along the axis on the opposing surface of the spiral shaft 8, and the tip of the bottle 7 is inserted into the groove 8α of the spiral shaft 8.
The helical shaft 8 is rotated forward and backward by an electric motor 10 installed at the inner bottom of the main body 1 via a power transmission means (not shown). Further, the concave grooves 8α of the spiral shaft 8 are formed so that the pitch near the conveyance roller 6 is larger in advance than in other parts.
The interval between the paper sheets 3 becomes wider in this part, making it easier to carry the paper 3 in.

On the other hand, the other end of each paper storage tray 5 is supported by the tip of a support member 11 that protrudes diagonally upward from the lower outer periphery of the collar 9, and the entire paper storage tray 5 is tilted so that the paper input side is lower. The upper paper storage tray 5 is placed on a circular arc portion 5α protruding from the upper surface of the other end of each paper storage tray 5, and the interval between the other ends of each paper storage tray 5 is maintained constant.

Effects of the Invention As described in detail above, the present invention provides a spiral shaft 8 on the paper loading side of the paper storage tray 5, and uses the spiral shaft 8 to store the paper 3 on the paper storage side of each paper storage tray 5. Since it is raised each time, there is no risk of generating background vibration or noise during operation.

This eliminates the conventional problem of vibrations that adversely affect copied images, and also allows the pitch of the concave grooves 8α of the helical shaft g to be made larger in advance in the vicinity of the conveying row 26 than in other parts. If this is done, the space between the paper storage trays 5 will be widened when the paper 3 is carried in, so that the paper 3 can be carried in smoothly.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a partially cutaway side view, and FIG. 2 is a sectional view taken along line nn in FIG. 1. 2 is a copying machine, 3 is paper, 5 is a paper storage tray, and ko is a spiral shaft. Applicant Fuji Xerox Co., Ltd. Agent Patent Attorney Masaaki Yonehara Patent Attorney Tadashi Hamamoto

Claims (1)

[Claims] Paper 3 installed in the copying machine 2 and ejected from the copying machine 2
t-1 In a device for collating paper into paper storage trays 5 provided in a plurality of upper and lower stages, a part of the paper storage tray 5 is engaged with a part of the paper storage tray 5 on the paper introduction side of the paper storage tray 5, and the paper storage tray 5 is collated. A collating device that is provided with a rotatably spiral shaft 6 that moves up and down on the paper input side.