JPS641378B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sheet conveying device used in a sheet processing device such as a copying machine, and in particular, the present invention relates to a sheet conveying device used in a sheet processing device such as a copying machine. , relates to an improvement of a sheet conveying device provided in a housing having an openable/closable cover.

[Prior Art] As a conventional sheet conveying device of this type, for example, one used in a sorter of a copying machine can be mentioned.

This is built into the sorter housing that has the above-mentioned opening/closing cover, and lightly presses down the conveyor belt installed inside the sorter housing and the sheet of paper that moves along this conveyor belt in order to stably convey it. The conveyance regulating means is also provided.

In this type, the above-mentioned conveyance regulating means may include a ball or roller that is pressed against the conveyor belt by the biasing force of a spring, or a suction means provided on the back side of the conveyor belt. A belt is already known in which a belt is provided with minute holes so that the paper is sucked into the conveyor belt by vacuum.

[Problems to be Solved by the Invention] By the way, in the former type of conventional conveyance regulating means, in order to apply an optimal conveyance regulating force to the paper on the conveyor belt, it is necessary to use balls and rollers. After setting the initial position, the biasing force of the spring must be finely adjusted, which not only makes the work of arranging the conveyance restricting means troublesome, but even if the conveying restricting means is once accurately placed, it is difficult to dispose of jams. If the cover is repeatedly opened and closed during maintenance, the cover itself may become deformed, causing fluctuations in the transport regulating force of the transport regulating means, resulting in a problem that paper transport operation tends to become unstable.

On the other hand, in the case of the latter type of conveyance regulating means, the mechanism itself is complicated and expensive, and there are problems in that it is noisy.

This invention has been made in view of the above-mentioned problems, and effectively avoids the complication and noise problems of the vacuum system, while stably transporting sheets with a simple structure. The purpose of the present invention is to provide a sheet conveying device that can easily set a conveyance regulating force for the purpose of conveyance regulation and eliminate fluctuations in the conveyance regulating force.

[Means for Solving the Problems] That is, the present invention includes a carrier installed in a housing having an openable/closable cover, and a carrier that is attached to the cover and moves along the carrier when the cover is closed. Assuming that the sheet conveyance device is equipped with a conveyance regulating means that lightly presses the sheet, a magnetic material disposed on the back side of the conveyance carrier and a flexible material that is attached to the cover in a substantially U-shape are provided. The transport regulating means is constituted by a film and a magnetic member supported by the flexible film and attracted to the magnetic body through the transport carrier when the cover is closed.

In such technical means, the carrier for conveyance may be appropriately selected as long as it can convey the sheet, including a belt, but at least it does not interfere with the attraction operation between the magnetic member and the magnetic material. It is preferable to use a material that is not too thick, for example, 1 mm or less in thickness.

Further, the flexible film is preferably a thin film such as a polyester film, which does not have very strong elasticity. Regarding the length of the flexible film, there is no problem as long as the magnetic member can be placed on the sheet on the transport carrier at least when the cover is closed, but it is recommended to use a longer flexible film. By doing this, even if the distance between the cover and the transport carrier is set roughly, the magnetic member suspended and supported by the flexible film can be securely attached to the sheet on the transport carrier. This is preferable in that it can be placed on.

Furthermore, as the magnet member, a freely deformable one such as a rubber magnet is most suitable, but it is of course not limited to this.

[Effect]

According to the above-mentioned technical means, since the magnetic member is suspended and supported via the flexible film, if the dimensions of the flexible film are set to be long enough, the cover can be easily attached. When closed, the magnetic member is placed in contact with the sheet on the conveyance carrier directly or through a flexible film, and is attracted to the magnetic body through the conveyance carrier, so that the magnetic member's own weight and magnet The suction force of the member functions as a conveyance regulating force for the sheet on the conveyance carrier.

[Example] Hereinafter, the present invention will be described in detail based on the example shown in the accompanying drawings.

FIG. 1 is a schematic explanatory diagram showing an embodiment of a paper conveying device to which the present invention is applied.

In the figure, reference numeral 1 denotes a conveyance belt such as a rubber belt as a conveyance carrier stored in a sorter housing of a copying machine, for example. Covers 3 that open the upper part of the housing are provided at appropriate intervals.

Further, the conveyor belt 1 is provided with a conveyance regulating means 4 that applies a predetermined conveyance regulating force to the paper 10 on the conveyor belt 1. In this embodiment, the conveyance regulating means 4 includes a sheet metal 2 as a magnetic material provided below the conveyor belt 1, and a thickness 1 which is attached to the back side of the cover 3 in a substantially U-shape.
It is composed of a flexible film 5 made of a polyester film with a diameter of about mm, and a magnet member 6 suspended and supported by the flexible film 5.

More specifically, a pair of attachment parts 7 are formed on the back side of the cover 3, and both ends of the flexible film 5 are attached to the attachment parts 7 with screws 8, etc. A magnetic member 6 is fixed to approximately the center of the side surface of the cover 3 of the flexible film 5, and when the cover 3 is closed, the center of the flexible film 5 is placed in contact with the conveyor belt 1.
The magnet member 6 is attracted to the sheet metal 2 through the conveyor belt 1.

Next, the operation of the paper conveyance device according to this embodiment will be explained.

Now, when the cover 3 is closed, the central portion of the flexible film 5 is placed in contact with the conveyor belt 1, and the magnet member 6 is attracted to the metal plate 2 through the conveyor belt 1.

In this state, when the paper 10 to be conveyed moves in the direction of arrow A along the conveyor belt 1,
The paper 10 on the conveyor belt 1 is covered with a flexible film 5
The magnetic member 6 enters the lower end of the magnetic member 6 and receives a transport regulating force P based on the own weight of the magnetic member 6 and the attraction force between the magnetic member 6 and the sheet metal 2. Therefore, the paper 10 on the conveyor belt 1 is conveyed straight without being displaced diagonally.

Further, when performing jamming or the like on the conveyor belt 1 portion, the cover 3 may be opened as shown in FIG. 2, and the flexible film 5 and the magnetic member are 6 is removed from the top of the conveyor belt 1, so that jamming etc. can be easily performed.

Furthermore, when the cover 3 is repeatedly opened and closed, even if the cover 3 is slightly deformed, the flexible film 5 is placed in contact with the conveyor belt 1 and the magnet member 6 is attached to the magnetic body 2. As long as it is attracted, the weight of the magnet member 6 and the attraction force between it and the magnetic body 2 will be applied to the paper 1 on the conveyor belt 1.
Since the transport regulating force P acts on the paper 10, the transport regulating force P acting on the paper 10 is kept constant, and it is possible to apply a stable transport force to the paper 10.

[Effects of the Invention] As explained above, according to the sheet conveyance device according to the present invention, there is no need for fine adjustment of the conveyance regulating force for the sheet on the conveyance carrier, and moreover, there is no need for fine adjustment of the conveyance regulating force for the sheet on the conveyance carrier, and moreover, there is no need for a cover that accompanies jamming etc. Since fluctuations in the conveyance regulating force due to opening/closing operations can be avoided, a stable conveyance regulating force can always be applied to the sheet on the conveying carrier, and the sheet can be stably conveyed.

In addition, in order to obtain stable conveyance regulating force, we adopted a simpler method that does not generate noise compared to the conventional vacuum system, which reduces the complexity of the device itself.
Cost increases and noise generation can be effectively prevented.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing one embodiment of the sheet conveying device according to the present invention, and FIG. 2 is an explanatory diagram showing the state when the cover is opened. Explanation of symbols, 1... Conveyor belt (conveyance carrier),
2... Sheet metal (magnetic material), 3... Cover, 4... Conveyance regulating means, 5... Flexible film, 6... Magnetic member, 10... Paper (sheet).

Claims (1)

[Claims] 1. A carrier 1 for transport installed in a housing having a cover 3 that can be opened and closed, and a sheet 10 that is attached to the cover 3 and moves along the carrier 1 for transport when the cover 3 is closed. In a sheet conveyance apparatus equipped with a conveyance regulating means 4 that lightly presses down, the conveyance regulating means 4 includes a magnetic body 2 disposed on the back side of the conveyance carrier 1 and an approximately
It is composed of a flexible film 5 attached in a shape of a letter, and a magnet member 6 supported by the flexible film 5 and attracted to the magnetic body 2 through the carrier 1 when the cover 3 is closed. A sheet conveying device characterized by: