Swivel-out stacking device for an electrophotographic printing d

Details Swivel-out stacking device for an electrophotographic printing d Swivel-out stacking device for an electrophotographic printing d

1991-08-08

1992-12-08

Terrell, William E.

Manufacturing container or tube from paper; or other manufacturi

Bending

Folding

271213, 2482811, 248284, B65H 4500

Patent

active

051693755

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The invention relates to a stacking device for a recording carrier of a high-speed printing device, in particular of an electrophotographic printing device.
2. Description of the Related Art
Stacking devices of the type mentioned at the beginning are known from DE-C 3,115,511. Here, the device is an output device for a pre-folded paper web in a paper stacker of a high-speed printing device in which the paper web is stacked on a paper deposit surface. In order to make the removal of the paper stack easier, the paper deposit surface is designed such that it can be extended from the housing area of the printer in a drawer-like manner and has on the sides a telescopically extendable guide profile system.
The known device is constructed in such a way that it is insensitive with respect to transverse forces so that even large and heavy paper stacks can be freely removed through the housing without impediment.
In stacking devices of this kind the paper stack is located in the vicinity of the floor when the paper deposit surface is pulled out. This is ergonomically unfavourable because for the further transport of the printed paper stacks these paper stacks have to be lifted up. This is troublesome and cumbersome because of the weight of the paper stacks.
A thermal printing device is also known from U.S. Pat. No. 4,681,468 which is designed in the form of a journal printer. The thermal printing device is removably arranged in a piece of furniture in the form of an operating console. It consists of a backup container with a printing device arranged therein. The backup container contains permanently installed paper output areas for receiving the printed recording carrier and for receiving the unprinted recording carrier. A lever device arranged below the backup container permits the backup container to be moved together with the printing device out of the operator console. Thus, the printing device is accessible from all sides, which facilitates servicing the printing device and inserting and removing the recording carrier. The lever device itself consists of two levers arranged in the manner of a parallelogram which are connected in articulated fashion on the one hand to the backup container and on the other hand to the piece of furniture. A spring assigned to the levers supports the lifting of the printing device out of a lowered position into a locked service position.


SUMMARY OF THE INVENTION

The object of the invention is to design a stacking device of the type mentioned at the beginning in such a way that it can be integrated inside a high-speed printing device without a large degree of outlay and which permits an ergonomically optimum removal of the stack.
This object is achieved with a stacking device of the type mentioned at the beginning having a housing area for receiving a paper output area which is designed to be able to swivel out of the housing area and a delivery device, assigned to the housing area, for the recording carrier; a swivel device for the paper output area for swivelling the paper output area out of an output position in which the paper output area is located in the housing area below the output device into swivel positions with adjustable removal heights at which the paper output area is located outside the housing area, the swivel device having: at least one swivel lever which is mounted by means of a first fixed pivot centre in the housing area and by means of a second free pivot centre on the paper output area in such a way that when the paper output area swivels out of the output position a removal position is reached having a removal height corresponding to the output position, means which position the paper output area horizontally irrespective of the swivel position of the paper output area and a presettable, motor-driven drive device which is coupled to the swivel lever.
Advantageous embodiments of the invention are characterized in that a first rotationally fixed round element is arranged in the region of the first fixed

REFERENCES:
patent: 2668626 (1954-02-01), Stuivenberg
patent: 4474567 (1984-10-01), Mugrauer et al.
patent: 4681468 (1987-07-01), Kallin et al.
patent: 4842573 (1989-06-01), Peter
patent: 5037054 (1991-08-01), McConnell
patent: 5108063 (1992-04-01), Koerber, Sr.
patent: 5110101 (1992-05-01), Roth

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