JPH0741722Y2 - Gate for sheet feeding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a gate for a sheet feeding device that separates a sheet to be fed by friction with a roller or an endless belt.

[Prior Art] In a gate of a sheet feeding apparatus that feeds and separates sheets by a conventional belt or roller, in order to separate and take out the sheets one by one, for example, a feed roller and a reverse roller that rotates in a direction opposite to the feed roller are used. A method of separating sheets by a roller or a method of facilitating the separation of sheets by imparting a predetermined inclination to the sheets accumulated by a gate or the like has been used. However, in the former case, the feed portion of the apparatus becomes large, and there is a problem in realizing the feeding apparatus in a small space. Also, even with the latter type of gate, it was not possible to completely prevent the double feed of the seat.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned conventional example, and realizes a small sheet feeding device with a small space and a gate for a sheet feeding device in which the double feed of the sheet is reduced. The purpose is to provide.

[Means for Solving the Problems] In order to achieve the above object, the gate for the sheet feeding device of the present invention has the following structure.

That is, a gate for a sheet feeding device which is provided at a sheet feeding outlet of a hopper (20) and separates a sheet fed from the hopper by a sheet transfer member (5), and the position of the hopper (20). An opening (35) for engaging the adjusting member (34) to adjust the vertical position of the gate with respect to the hopper, and an opening (35) for engaging the hopper (20) to attach the gate (1) downward. When the locking portion (32) is locked by the spring (31) for biasing and bends according to the pressing state of the sheet or the sheet transfer member, and is not pressed by the sheet or the sheet transfer member. Is provided on the lower end pressing portion (8) having a plurality of linear projecting pieces at the lower end portion, and on the upper side of the lower end pressing portion on the side that comes into contact with the sheets accumulated in the hopper, and First to give the seat a slope Taper (71) and a second taper (72) provided on the side of the first taper that comes into contact with the sheets deposited in the hopper and having a larger inclination angle than the first taper. And a flexible member having.

[Operation] In the above configuration, the sheets accumulated in the hopper are
The second taper and the first taper are inclined, and the sheet is fed from the sheet feeding port while being pressed by the lower end pressing portion to prevent double feeding. Since the lower end pressing portion is linear when not pressed by the sheet or the sheet transfer member, when the sheet is not delivered, even if the gate is moved upward by the position adjusting member of the hopper, the sheet delivery port is linearly moved. The sheet-shaped lower end pressing portion is closed, so that the sheet can be prevented from coming out.

Embodiments Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[Description of Gate (FIGS. 1 to 3)] FIG. 1 (A) is a front view of the gate 1 of this embodiment, and FIG. 1 (B) is a right side view thereof.

In the figure, 7 is a member such as rubber formed near the tip of the gate. Furthermore, the tip is about 0.5 mm thick,
A pressing portion 8 for pressing a sheet or a card is formed. The pressing portion 8 is made of the same material as the gate tip portion 7 in this embodiment, but may be made of another member. In addition, the pressing portion 8 is formed in a strip shape by making a plurality of cuts in order to equalize the friction with the passing card, but the present invention is not limited to this.

The pressing portion 8 is normally linear as shown in FIG. 1, but can be freely bent when pressed by a card or the like. Therefore, since the degree of curvature changes according to the thickness of the card and the pressing force can be automatically adjusted, there is an advantage that a thin card to a thick card can be handled. When the card is not sent and the pressing portion 8 is not pressed by the belt,
Since the pressing portion 8 has a linear shape as shown in the drawing, it has an effect of blocking the card from coming out by blocking the delivery port such as a hopper.

FIG. 2 is an enlarged view of the contact portion between the gate 1 and the belt 5 of this embodiment, and the same portions as those in FIG. 1 are indicated by the same symbols.

Since the paper 2 in the hopper 20 is pressed downward by a predetermined pressure by a weight (not shown) or the like, when the belt 5 is moved in the arrow direction, the lowermost card is fed in the arrow direction by friction with the belt 5. Reference numeral 71 of the member 7 indicates a taper portion having an inclination angle of about 20 °, and reference numeral 72 indicates a taper portion having a larger inclination angle than the taper portion 71. It is easier to send out cards one by one than 73.

Since the pressing portion 8 is pressed by the belt 5, the card that is bent as shown in the figure and sent from the gate tip 73 is pressed by the pressing portion 8
Even when a plurality of cards are sent out from the gate tip portion 73, the upper card is pressed by the pressing portion 8 and is not sent out, and only the card in contact with the belt 5 is sent out. Will eventually be 1
It works like sending cards one by one.

FIG. 3 is a view showing a state when the card 2 is sent out, as seen from the front of the card hopper 20, and the same parts as those in FIGS. 1 and 2 are designated by the same reference numerals and the description thereof will be omitted.

In the figure, 31 is a spring for pushing down the gate 1 with a predetermined force, which is wound around a screw 32 and hooked on a hooking portion 33 of the hopper 20. Reference numeral 34 is a turning member for adjusting the vertical position of the gate 1, and its shaft is eccentric. The shaft is inscribed in the window 35 of the gate 1, and the turning member 34 is turned to turn the shaft and the window 35. The contact state changes and the vertical position of the gate 1 is adjusted.
This adjusts the pressing force of the pressing portion 8 according to the thickness of the card 2, the quality of the paper, and the like.

As described above, according to this embodiment, the double feed of the sheet can be prevented by providing the gate with the pressing portion that presses the sheet that has passed through the gate.

Further, according to the present embodiment, since the gap between the gate and the card can be adjusted, there is an effect that it can be applied to a thin card to a thick card.

In this embodiment, the case where the card is transferred by the belt has been described, but it goes without saying that the card may be transferred by the roller.

[Effects of the Invention] As described above, according to the present invention, there is an effect that double feed of sheets can be prevented in correspondence with thin sheets to thick sheets.

[Brief description of drawings]

1 (A) is a front view of a gate according to an embodiment of the present invention, FIG. 1 (B) is a right side view of the gate, and FIG. 2 is an enlarged view of a contact portion between a belt and the gate portion of this embodiment. FIG. 3 and FIG. 3 are views seen from the front of the card hopper. In the figure, 1 ... Gate, 2 ... Card, 5 ... Belt, 7
...... Gate, 8 ...... Pressing part, 20 ...... Card hopper, 31 ...
… Spring, 33 …… Latching part, 34 …… Rotating member, 35 …… Window, 7
1, 72 ... taper part, 73 ... gate end part.

Claims (1)

[Scope of utility model registration request] 1. A hopper (20) provided at a sheet delivery port,
A gate for a sheet feeding device for separating a sheet sent from the hopper by a sheet transfer member (5), which engages with a position adjusting member (34) of the hopper (20) and is attached to the hopper. An opening (35) for adjusting the vertical position of the gate, and a lock (31) engaged with the hopper (20) for biasing the gate (1) downward. Stop (32)
And a lower end pressing portion (8) that has a plurality of protruding pieces that are curved according to the pressing state of the sheet or the sheet transfer member and that are linear when not pressed by the sheet or the sheet transfer member (8). ), A first taper (71) provided on an upper side of the lower end pressing portion and on a side that comes into contact with a sheet accumulated in the hopper, for giving the accumulated sheet an inclination, Provided on the side of the taper above which comes into contact with the sheets deposited in the hopper,
A flexible member (7) having a second taper (72) having an inclination angle larger than that of the first taper, and a gate for a sheet feeding apparatus.