JPH078340U - Paper feeder - Google Patents

Abstract

(57) [Abstract] [Purpose] Smooth paper feeding is realized by reducing the slip resistance between the lowermost paper 1a of the papers 1 stacked in the housing 2 and the bottom 2b of the housing 2. A paper feed is provided at a lower end of a side of a storage unit 2 for accommodating a large number of papers 1 vertically stacked, and the papers 1a that are drawn out from the paper 1a at the bottom of the stacked papers 1 in order from the above-mentioned discharge port 3a. In the device, the accommodation portion 2 includes the bottom portion 2b to the accommodation portion 2
The feed roller 5 protruding to the side is provided, and the rotation roller 10 (rib-shaped convex portion 1) is provided as a friction reducing means for reducing contact friction with the lower surface of the lowermost paper 1a in the vicinity of the feed roller 5.
2 may be used).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paper feeding device for facilitating the paper feeding when the papers stacked and accommodated in the accommodating portion are sequentially ejected from the accommodating portion from the lower end.

[0002]

[Prior art]

 In general, it is often the case that the address, name, etc. are written by hand on paper such as postcards for funerals and seat cards at banquets. However, since handwriting work is often covered by the elderly, it is desirable to automate this work. In this case, a paper feeding device is conceivable in which a lead-out port is provided at the lower end of the side of a storage unit for stacking and storing a large number of paper sheets in the vertical direction, and the paper sheets at the bottom of the above-mentioned stacked paper sheets are drawn out from the lead-out port in order.

As such a paper feeding device, a feeding means such as a feeding roller is arranged at the bottom of the accommodating portion, and it is brought into contact with the lower surface of the paper at the lowermost stage and is brought out from the accommodating portion by contact friction. A method can be considered.

However, when about 200 sheets of paper are stacked, the lowermost paper bears the total weight of the paper, so that a large contact friction occurs between the lowermost paper and the bottom surface of the accommodating portion. Moreover, a weight is usually placed on the top of the paper in order to provide sufficient frictional force between the paper and the feed roller when the remaining amount of paper is low. Therefore, in the initial stage of feeding, even if an attempt is made to feed the paper by the feed roller, the slip resistance of the paper at the bottom is too large and the feed roller runs idle, resulting in poor feeding and the backside of the paper. There is a risk of rubbing against the feed roller and becoming soiled.

[0005]

[The purpose of the device]

 The present invention solves the above-mentioned drawbacks, and in particular, by reducing the sliding resistance between the lowermost paper stacked in the accommodating section and the bottom of the accommodating section, smooth paper feeding can be realized. The purpose is to provide a feeder.

[0006]

[Means for achieving the purpose]

 In order to achieve the above-mentioned object, a paper feeding device according to the present invention is provided with an outlet at a lower end of a side of a storage part for accommodating a large number of papers stacked vertically and storing the papers at the bottom of the stacked papers. In the paper feeding device that sequentially pulls out from the above-mentioned outlet, a feeding roller protruding from the bottom to the holding portion side is provided in the storage section, and contact friction with the lower surface of the lowermost paper is provided in the vicinity of the feed roller. It is characterized by the provision of means for reducing friction.

The friction reducing means may be configured as a rotating roller that rotates freely, or may be configured as a rib-shaped convex portion formed on the bottom portion.

[0008]

[Function and effect of the device]

 According to the above configuration, when the papers are stacked in the accommodating portion, the paper at the bottom is placed on the feed roller and the friction reducing means. Then, when the feed roller is rotated, the lower surface of the lowermost sheet of paper comes into contact with the feed roller, and therefore the rotation of the feed roller generates a feeding force on the lowermost sheet of paper. However, the lower surface of the lowermost paper is in contact with the feed roller as well as the friction reducing means.Since the contact friction between this friction reducing means and the lower surface of the lowermost paper is small, the lowermost paper at the time of feeding Has very low slip resistance. Therefore, it can be smoothly delivered from the outlet.

[0009]

【Example】

 FIG. 1 shows a paper feeding device. The feeding device is provided with a lead-out port 3 at the lower end of a front side wall 2a of a storage part 2 for accommodating a large number of papers 1 stacked vertically and is formed at a bottom part 2b. The feed roller 5 is arranged in the opening 4, and the feed roller 5 is driven to rotate so that the paper 1a at the lowermost stage is led out from the lead-out port 3 in order.

A rotary drive mechanism (not shown) is connected to the feed roller 5, and the feed roller 5 is rotationally driven by the rotary drive mechanism.

Reference numeral 6 denotes a weight means, which is placed on the uppermost part of the stacked papers 1 and provides sufficient frictional force between the paper 1 and the feed roller 5 when the remaining amount of the papers becomes small. To do so. Rollers 8 and 9 are respectively formed on the tip and the base of the support arm 7, and the roller 9 on the base side moves up and down along the side wall 2a of the accommodating portion 2.

Next, at the bottom portion 2b of the accommodating portion 2, friction reducing means for reducing contact friction with the paper 1 is provided near the feed roller 5. This friction reducing means is formed as a freely rotating rotating roller 10, which projects upward from an opening 11 formed in the bottom portion 2b and the height of which is substantially equal to the height of the feed roller 5. . Two or three rotary rollers may be provided in parallel with the rotary roller 10 described above.

According to the above configuration, when the papers 1 are stacked in the accommodating portion 2, the lowermost paper 1a is placed on the feed roller 5 and the rotary roller 10. Further, a weight means 6 is placed on the uppermost stage of the paper 1. Then, when the rotation drive mechanism is operated, the feed roller 5 rotates. Since the lower surface of the lowermost paper 1a is in contact with the feeding roller 5, the rotation of the feeding roller 5 generates a feeding force on the lowermost paper 1a. Since the load of the entire paper and the load of the weight means 6 are applied to the feed roller 5, the feed force by the rotation of the feed roller 5 is large. Further, since the lower surface of the lowermost paper 1a is only in line contact with the feed roller 5 and the rotating roller 10, respectively, the sliding resistance against the lowermost paper 1a during feeding is very small. Therefore, it can be smoothly delivered from the outlet 3. Even if the remaining amount of the paper 1 becomes small, the load of the weight means 6 causes sufficient friction between the lowermost paper 1a and the feed roller 5, and the feed force can be applied to the paper 1.

The means for reducing the friction between the bottommost sheet 1a and the bottom portion 2b is not limited to the rotary roller 10 described above. For example, as shown in FIG. 2, a rib-shaped convex portion 12 may be formed on the bottom portion 2b of the accommodating portion 2. Further, the rib-shaped convex portion may be provided in the paper feeding direction, or may be formed by combining the rotary roller and the rib-shaped convex portion.

[Brief description of drawings]

FIG. 1 is a sectional explanatory view of a paper feeding device according to the present invention.

FIG. 2 is a cross-sectional explanatory view of another example of the paper feeding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper 2 Storage part 3 Outlet port 5 Feed roller 10 Rotating roller (friction reducing means) 12 Rib-shaped convex part (friction reducing means)

Claims (3)

[Scope of utility model registration request] 1. A paper feeding device in which an outlet is provided at a lower end of a side portion of an accommodating unit for accommodating and stacking a large number of papers vertically, and the lowermost papers of the stacked papers are sequentially drawn out through the outlet. In the accommodating portion, a feed roller protruding from the bottom to the accommodating portion side is provided, and friction reducing means for reducing contact friction with the lower surface of the lowermost paper is provided in the vicinity of the feed roller. Feeder. 2. The paper feeding device according to claim 1, wherein the friction reducing means is a rotating roller that rotates freely. 3. The paper feeding device according to claim 1, wherein the friction reducing means is a rib-shaped convex portion formed on the bottom portion.