Rolled paper feeding device

Abstract

A rolled paper feeding device includes a holder body which rotatably supports a rolled paper, a cover part where one end of which is rotatably supported in a contacting and separating direction with respect to the rolled paper and the other end of which abuts with the rolled paper, a feed roller which is provided in the cover part for feeding a paper of the rolled paper, and a drive part which is provided in the cover part for rotationally driving the feed roller. The feed roller is arranged on the other end side with respect to the center of the rolled paper. A control part for controlling the drive part may include a first and a second switches, which can provide three different lengths of the paper to be fed out of the rolled paper.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority to Japanese Application No. 2003-160334 filed Jun. 5, 2003, Japanese Application No. 2003-164331 filed Jun. 9, 2003, Japanese Application No. 2003-171807 filed Jun. 17, 2003, and Japanese Application No. 2003-175357 filed Jun. 19, 2003, which are incorporated herein by reference. FIELD OF THE INVENTION [0002] The present invention relates to a rolled paper feeding device in which a paper is fed out from a rolled paper by rotating the rolled paper. More specifically, the present invention relates to a rolled paper feeding device which is suitable to feed thin paper such as toilet paper and paper towels. BACKGROUND OF THE INVENTION [0003] One of the conventional rolled paper feeding devices includes a drive roller mounted on a holder that holds a roll of toilet paper. The roll of toilet paper is rotated by the drive roller to feed the paper outside (see Japanese Registered Utility Model No. 3,024,537). [00...

AI Technical Summary

Benefits of technology

[0015] In view of the problems described above, it is an object and advantage of the present invention to provide a rolled paper feeding device which is capable of obtaining a high feeding force for the rolled paper without increasing the number of parts, simplifying the setting of the rolled paper, and easily drawing out the paper from the rolled paper manually at the time the motor stops.

[0016] Further, it is another object and advantage of the present invention to provide a rolled paper feeding device which has a good operability of feeding the paper while restricting the number of switches.

[0017] Further, it is another object and advantage of the present invention to provide a rolled paper feeding device which is capable of easily drawing out the paper manually from the rolled paper.

[0018] Further, it is another object and advantage of the present invention to provide a rolled paper feeding device which is capable of preventing an erroneous operation or the like due to static electricity.

[0019] In order to achieve the above object and advantage, according to an embodiment of the present invention, there is provided a rolled paper feeding device including a holder body which rotatably supports a rolled paper, a cover part one end of which is rotatably supported in a contacting and separating direction with respect to the rolled paper and the other end of which abuts with the rolled paper, a feed roller which is provided in the cover part for feeding a paper of the rolled paper and a drive part which is provided in the cover part for rotationally driving the feed roller. The feed roller is arranged on the other end side with respect to a center of the rolled paper.

[0020] According to the embodiment of the present invention, the cover part is provided with at least the feed roller and the drive part comes into contact with the rolled paper from an upper side and makes the feed roller press the rolled paper in an appropriate force by the weight of the cover part. Therefore, the contact pressure is increased more compared to the conventional mechanism that the rolled paper comes into contact with the feed roller by the weight of the rolled paper. Consequently, the idle rotation of the feed roller is prevented and the feeding force for the rolled paper can be increased.

Problems solved by technology

However, since the weight of the roll of toilet paper is light, the contact pressure is inadequate and thus it is difficult to obtain a strong feeding force.

Especially, when the roll of toilet paper is reduced and its weight becomes light, the drive roller can easily become idle.

In addition, when electric power is not supplied due to battery shortage or power failure, it is difficult to draw out the toilet paper because the pair of rollers has to be rotated manually.

Further, the rolled paper very easily torn.

However, in this case, the number of parts increases and the mechanism becomes more complicated.

Moreover, the entire mechanism becomes larger and thus feels unnatural when the large mechanism is installed in a restroom and thus the design is not preferable.

Further, the setting method for the roll of toilet paper will be different from that of the currently used manual rolled paper holder and thus requires more effort.

However, in the rolled paper feeding device described above, the setting time of the timer has to be adjusted when a user tries to change the feeding length and thus fine adjustment is difficult.

Therefore, operability is not satisfactory.

However, in this case, the number of switches and the cost of the device increases.

Also, the size of each switch becomes small and thus the degree of freedom for design decreases or operability is reduced.

However, when the motor and the roller are connected through the gear train or the belt and the motor stops because of a battery shortage it is difficult to draw out the paper manually from the rolled paper.

This is because the detent torque of the motor exists due to a motor stoppage, which gives a load on the roller to cause it to be difficult to rotate.

Alternatively, the paper may be torn on the way even when it is drawn out, or a large amount of force is required to draw out the paper and thus operability is not satisfactory.

In addition, since an overload is applied to the roller, the durability performance is reduced.

Further, static electricity may flow through the rolled paper device for various reasons.

Alternatively, static electricity is generated by friction between the rolled paper and a holder body or a cover part made by resin for the rolled paper, which may cause the static electricity to flow near the control circuit.

Therefore, when static electricity from a user or a rolled paper flows to the control circuit, the control circuit may be affected to cause an erroneous operation, a stoppage of operation, the runaway or the destruction of the circuit.

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