JPH072538B2 - Card unloading device - Google Patents

Description

The present invention relates to a card carry-out device incorporated in a card product vending machine such as a telephone card.

[Conventional technology]

First, referring to FIG. 2, an outline of a reverse type initial card ejecting device which is an object of the present invention will be described. This card unloading device has already been proposed by the same applicant as Japanese Patent Application No. 62-105822. In the figure, reference numeral 1 is a card housing case for accommodating a large number of cards 2 in a stacking manner, a card feeding roller 3 is provided at the bottom thereof, and a card carry-out port 4 is opened at the lower front portion. Further, a rubber feed roller 5 and a reverse roller 6 are arranged in front of the carry-out port of the card housing case 1 so as to face each other with a gap g therebetween, and the gap g is the thickness d of the card 2. It is set to be wider than one card and narrower than two (d <g <2d). Reference numeral 7 is a weight for pressing the storage card 2 against the feeding roller 3. The rollers 3, 5 and 6 are drivingly coupled to a drive motor through a gear mechanism (not shown) so that they are driven to rotate in the same direction.

With this configuration, a normal card unloading operation is performed as follows. That is, in the standby state, a large number of cards 2 are stacked and stored in the card storage case 1. When a card carry-out command is given, the rollers 3, 5, 6 are simultaneously driven to rotate. As a result, first, the lowest card 2 in contact with the feeding roller 3 is fed forward, passes through the card carry-out port 4, is delivered to the feed roller 5 located in front of it, and is conveyed further forward as indicated by arrow P. From here, it is carried out to the product outlet through a shooter (not shown). In this way, when one card 2 is delivered from the card housing case 1, there is a residual gap between the reverse roller 6 and the upper surface of the carry-out card 2a as shown in FIG. Does not come into contact with the card 2, and the card 2a is conveyed forward as it is by the conveying force of the feed roller 5.

On the other hand, the card storage state in the card storage case 1 is bad and the cards 2 are stacked and stored in the card storage case 1 without being aligned, or the cards are carried out because the cards are stuck to each other due to moisture or the like. In the process of operation, when the lowest card and the second upper card are simultaneously drawn out from the accommodation case 1 while overlapping, the two cards 2a and 2b are fed together as shown in FIG. It is sandwiched between the roller 5 and the reverse roller 6. Therefore, as described above, the reverse roller 6 and the feed roller 5 that are in contact with the upper and lower surfaces with the cards 2a and 2b interposed therebetween.
Rotate in the same direction as, and therefore the upper card 2b
Is separated from the lower card 2a by the conveying force of the reverse roller 6 and pushed back in the direction of the arrow Q, and only the lower card 2a is sent forward by the conveying force of the feed roller 5. As a result, it is possible to prevent the trouble of carrying out the two cards at the same time to the product take-out port.

Next, FIG. 5 shows a detailed mounting structure of the feed roller 5 and the reverse roller 6 in the conventional reverse card carry-out device. That is, the feed roller 5 is pivotally supported between the left and right side walls 8 of the machine frame, while the reverse roller 6 located above the feed roller 5 is pivotally supported by the U-shaped support frame 9. Moreover, the support frame 9 is supported by a mounting base 11 that also serves as a support portion of the adjusting screw 12 installed between the side walls 8 via a tension spring 10 that is biased upward so as to be vertically movable in a suspension manner. It is positioned and held by a gap adjusting screw 12 screwed onto the base 11. 13 is an adjusting screw
There are 12 loosening prevention springs.

By operating the adjusting screw 12 with such a structure, the reverse roller 6 moves up and down via the support frame 11, and the gap g between the reverse roller 6 and the feed roller 5 can be variably adjusted according to the card thickness. .

[Problems to be solved by the invention]

By the way, with the above-described structure for mounting the reverse roller 5, the following problems occur during actual operation of the card carry-out device. That is, when the card 2 is, for example, a telephone card, the thickness d of the card 2 is d = 0.27 mm. Therefore, the gap g between the feed roller 5 and the reverse roller 6 is always d <g <2d, and therefore 0.27 mm < It must be controlled to g <0.54 mm.

Although the strict control of the gap g is required as described above, if the ambient temperature changes as it is, the rubber rollers 5 and 6 expand and contract in the radial direction accordingly, and as a result, As a result, the gap g changes. That is, in FIG. 5, when the ambient temperature rises, the rollers 5 and 6 expand as shown by the alternate long and short dash line and the diameter increases, so that the initially set gap g becomes narrower to g1.
On the other hand, when the ambient temperature decreases, the rollers 5 and 6 contract as shown by the chain double-dashed line and the diameter decreases, so that the gap g expands to g2. According to the inventor's experiment on this point,
For example, when the ambient temperature changes by 30 deg, the gap g between the rollers 5 and 6 which is initially set to a proper value at room temperature deviates from the above-mentioned gap management condition, and as a result, the feed roller is changed. It has been confirmed that the normal card separating function cannot be performed between the reverse roller 5 and the reverse roller 6.

In addition, the temperature changes throughout the year are large depending on the area where the card vending machine equipped with the card unloader is installed, and therefore the conventional card unloader can withstand use in areas with large temperature differences. There is no inconvenience.

The present invention has been made in view of the above points, and an object thereof is to cancel a gap variation between a feed roller and a reverse roller due to a variation in ambient temperature and to always maintain a proper initial gap. Another object of the present invention is to provide a highly reliable card unloading device configuration capable of ensuring a stable card unloading operation even in an area where the ambient temperature fluctuates greatly.

[Means for solving problems]

In order to solve the above-mentioned problems, according to the present invention, a card storage case having a card outlet in the lower front portion and a card feeding roller at the bottom, and a card outlet case which is located in front of the outlet and is mutually Wider than the thickness of one card between, 2
It comprises a reverse roller and a feed roller which are vertically opposed to each other with a gap narrower than the thickness of one sheet, and the reverse roller is supported so as to be movable up and down by urging the reverse roller upward with respect to the frame. And a mounting base for supporting an adjusting screw that abuts on the support frame of the reverse roller and adjusts a gap between the reverse roller and the feed roller, and stacks a large number of cards in the card storage case. In a card carry-out device which is configured to store a card and feed it out from a card storage case by a command to a feed roller so as to send it out to the front, extends vertically above the reverse roller and has one end of the machine frame. A pair of temperature compensating members that expand and contract due to temperature changes fixed to the side walls are provided, and the adjusting screw is mounted between the free ends of the pair of temperature compensating members. A temperature compensating mechanism having a pedestal installed is provided, and the expansion and contraction in the radial direction of the feed roller and the reverse roller due to the ambient temperature change are offset by the expansion and contraction of the temperature compensating member so that the gap between the rollers is reduced. It shall be constructed so that it is held constant.

[Action]

With the above configuration, the gap between the feed roller and the reverse roller is properly initialized by the adjusting screw in advance in accordance with the thickness of the card, so that when the ambient temperature changes, the temperature compensating member is moved up and down. The relative positions of the feed roller and the reverse roller are displaced in a direction in which the amount of gap variation between the rollers is canceled by the expansion and contraction in the directions, whereby the initially set gap between the rollers can always be kept constant.

〔Example〕

FIG. 1 shows the structure of an embodiment of the present invention, and the same members corresponding to FIG. 5 are designated by the same reference numerals.

That is, in the conventional structure shown in FIG. 5, the mounting base 11 for the adjusting screw 12 located above the reverse roller 6, which is directly installed between the side walls 8 on the machine frame side, and the base 11 in the configuration shown in FIG. It is supported on the side wall 8 of the machine frame through a pair of temperature compensating members 14 shown at the left and right ends. Here, the temperature compensating member 14 is a columnar body made of a material having a large coefficient of thermal expansion, for example, polyacetal resin, the lower end of which is fixed to the side wall 8 and extends in the vertical direction. A base 11 for mounting the adjusting screw 12 is installed and connected between them. 15
Is an auxiliary frame arranged between the temperature compensating members 14 side by side on the base 8, the upper end of a spring 10 for suspending and supporting the support frame 9 on the reverse roller 5 is locked to the auxiliary frame 15, and the base 11 An adjusting screw 12 screwed into the auxiliary frame 15 loosely fits and penetrates the auxiliary frame 15. Further, the length dimension 1 between the fixed end and the base coupling end of the temperature assurance member 14 is determined by the upper and lower sides of the base 11 that follow the expansion and contraction of the member 15 in the longitudinal direction caused by the ambient temperature change. Displacement, expansion of feed roller 5 and reverse 6,
The length is selected so as to exactly offset the amount of gap variation generated in the gap g between the rollers due to contraction.

Next, the temperature compensating operation for the gap g between the feed roller 5 and the reverse roller 6 having the above configuration will be described. First, when the ambient temperature rises from the state where the gap g is initially set between the feed roller 5 and the reverse roller 6 at room temperature, the rubber rollers 5 and 6 are designed to narrow the gap g as described in FIG. Although it expands in the radial direction, at the same time, the temperature compensating member 15 also expands in the longitudinal direction and pulls the reverse roller 6 upward through the base 11, and thus the roller support frame 9. As a result, the relative position with respect to the feed roller 5 is changed, and it is possible to cancel the apparent variation of the gap due to the expansion of the rollers 5 and 6 and hold the initial set gap g. Similarly, when the ambient temperature decreases, the gap g tends to widen due to the contraction of the rollers 5 and 6, but at the same time, the temperature compensating member 15
Also contracts in the longitudinal direction and descends so as to bring the reverse roller 6 closer to the feed roller 5, so that the change in the gap can be offset, and the gap g between the rollers can always be set to the initial setting value regardless of the fluctuation of the ambient temperature. Can be kept constant.

In the illustrated embodiment, the temperature compensating member 14 is incorporated in the mounting mechanism on the reverse roller 6 side. However, the reverse roller 6 is finally fixed and then the feed roller 5 is held.
It is also possible to incorporate a temperature compensating member in the side mounting portion to perform temperature compensation of the gap between the rollers.

〔The invention's effect〕

As described above, according to the present invention, with respect to the card unloading device incorporating the reverse roller, the radial expansion of the feed roller and the reverse roller due to the ambient temperature change,
The temperature compensation mechanism that offsets the amount of contraction and keeps the gap between the rollers constant allows the gap between the feed roller and the reverse roller to always be initialized even when the ambient temperature changes significantly. Therefore, the reliability of the card carry-out device mounted and used in the card vending machine can be significantly improved. Further, a pair of temperature compensating members which extend vertically above the reverse roller and whose one end is fixed to the side wall of the machine frame to expand and contract due to temperature change are provided, and a space between the free ends of the pair of temperature compensating members is provided. The temperature compensation mechanism is constructed by installing the adjustment screw mounting base on the
Originally, the space can be installed above the reverse roller and in front of the card storage case, so that it can be made compact without changing the overall size of the carry-out device.

[Brief description of drawings]

FIG. 1 is a detailed structural diagram of the attachment of a feed roller and a reverse roller showing a configuration of an embodiment of the present invention, FIG. 2 is a schematic diagram of a reverse type card unloading device, and FIGS. 3 and 4 are cards according to FIG. FIG. 5 is an explanatory view of the carry-out operation, and FIG. 5 is a detailed structural diagram of attachment of the conventional feed roller and reverse roller. In each figure, 1: card storage case, 2: card, 3: feeding roller, 4: gate exit, 5: feed roller, 6: reverse roller, 8:
Machine side wall, 9: Roller support frame, 10: Spring, 11: Mounting base, 12: Adjusting screw, 14: Temperature compensating member, g: Gap between rollers.

Claims (1)

[Claims] 1. A card storage case having a card outlet opening at the lower front and a card feeding roller at the bottom, and a card storage case located in front of the card outlet and wider than the thickness of one card between them. It comprises a reverse roller and a feed roller, which are vertically opposed to each other with a gap narrower than the thickness of two sheets, and can be moved up and down by urging the reverse roller upward with respect to the machine frame with a spring. And a mounting base that supports an adjusting screw that contacts the supporting frame of the reverse roller and adjusts the gap between the reverse roller and the feed roller, and mounts a large number of cards in the card housing case. In the card unloading device, wherein the cards are stacked and stored, and the cards delivered from the card storage case in response to a command are transferred to the feed roller and sent out forward. It extends in a vertical direction above the La,
A temperature obtained by fixing a pair of temperature compensating members whose one end is fixed to the side wall of the machine frame and which expands and contracts due to temperature change, and mounts the mounting base of the adjusting screw between the free ends of the pair of temperature compensating members. A compensation mechanism is provided to offset the expansion and contraction of the feed roller and the reverse roller in the radial direction due to the ambient temperature change by the expansion and contraction of the temperature compensation member to maintain a constant gap between the rollers. Card ejection device.