JPH0720776Y2 - Shutter mechanism for recording medium transport passage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a shutter mechanism for a recording medium transport passage, which is provided with a shutter member that opens and closes a transport passage through which a recording medium is transported.

(Prior Art) In recent years, various reading / writing devices such as a card reader, a passbook reader, and a receipt reader have been widely adopted in various fields. A recording medium having an information recording portion such as a magnetic stripe is inserted into these reading / writing devices, and the recording medium is recorded / reproduced by a recording / reproducing means such as a magnetic head through a conveyance path provided in the reading / writing device. When is sent, predetermined information is written in the information recording section of the recording medium by the recording / reproducing means, or the information written in the information recording section is reproduced.

Here, a shutter mechanism for preventing tampering with the inside of the conveying path or preventing invasion of dust is often provided in the conveying path of the recording medium. For example,
The shutter mechanism disclosed in Japanese Patent Laid-Open No. 61-37103 includes a shutter member that opens / closes the transport passage. The shutter member is fixed to the closed position by a predetermined engagement mechanism so that the shutter member does not retract from the passage due to a forced force from the outside.

(Problems to be solved by the invention) However, in such a conventional shutter mechanism of the recording medium conveying passage, it is possible to prevent unnecessary opening operation of the shutter member due to mischief, but the mechanism is complicated. , Requires a large placement space. Further, there is a problem that a drive source (solenoid) having a relatively large output is required and the number of parts is large, which is disadvantageous in cost.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a shutter mechanism for a recording medium conveyance path, which is capable of performing a reliable operation with a simple mechanism.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a shutter mechanism for a recording medium transport passage, which comprises a shutter member for opening and closing a transport passage through which a recording medium is transported. A first shutter member that is arranged in parallel in the transport direction of the recording medium so as to form a mechanism, and is provided on the rear side in the transport direction of the recording medium; and a second shutter member that is provided on the insertion port side of the recording medium. A closing urging unit that maintains the first shutter member and the second shutter member at the closed position of the transfer passage, a solenoid that causes the first shutter member to open and close the transfer passage, and a solenoid of the first shutter member. The output of the solenoid is transmitted to the second shutter member in conjunction with the opening / closing operation of the transfer passage to open / close the transfer passage to the second shutter member. In addition to performing the closing operation, an interlocking device that allows the opening / closing operation of the second shutter member independent of the opening / closing operation of the first shutter member within a certain range is provided.

(Operation) In the means having such a configuration, when the recording medium is not inserted into the transport passage first, both the first shutter member and the second shutter member are maintained at the closed position of the transport passage by the closing biasing means. . This double shutter structure prevents tampering with the inside of the conveying path or prevents dust from entering. At this time, the second shutter member may be pushed down alone depending on the mischief, but the first shutter member is not pushed down, and therefore, further mischief is prevented.

On the other hand, when the recording medium is inserted into the transport passage, the first shutter member is first driven in the opening direction by the solenoid, and then the second shutter member is opened via the interlocking means based on the transport passage opening operation of the first shutter member. An operation is carried out, whereby the transport path is completely opened.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The embodiment shown in FIGS. 1, 2 and 3 is
The present invention is applied to a card reader.

A card transport passage (not shown) for transporting a magnetic card as a recording medium is provided in the apparatus main body 1 so as to extend substantially horizontally. In the card transport passage, a plurality of feed rollers are arranged in parallel, and recording / reproducing means such as a magnetic head for reading or writing information on the magnetic stripe provided on the magnetic card is provided.

Further, a shutter mechanism 2 is mounted on the card insertion side (left end in FIG. 1) of the card transport passage in the apparatus main body 1. The shutter mechanism 2 is provided with an entrance transfer path 201 that is continuous with the card transfer path in the apparatus main body 1, and a first shutter member 202 and a second shutter member that open and close the entrance transfer path 201. 203 is provided. The first shutter member 202 and the second shutter member 203 are arranged side by side so as to be close to each other in the transfer direction of the magnetic card to form a double shutter mechanism, and the first shutter means 202 is on the back side in the card transport direction. The second shutter means 203 are provided on the card insertion slot side. This double shutter mechanism will be described below.

First, on both sides of the entrance transport passage 201, the entrance transport passage 2
A pair of side plates 204, 204 are arranged so as to sandwich 01, and one end of an arm member 206 is rotatably attached to the card insertion side (the left end in FIG. 1) of the side plates 204, 204 via support pins 205, 205. Has been. The arm member
206 extends to a region directly below FIG. 1 of the inlet transport passage 201, and a tip edge portion (right end portion in FIG. 1) of the arm member 206 is integrally connected to the second shutter member 203. Has been done. Escape holes 206a, 206a are formed in the middle of the arm member 206.

With such a configuration, the second shutter member 203
Is rotatable about the support pin 205, and the second shutter member 203 is projected into the entrance transfer passage 201 based on the rotation operation to close the passage.
Alternatively, the second shutter member 203 is retracted from the entrance transport passage 201 to open the passage.
The second shutter member 203 has a width dimension corresponding to the entire width of the entrance transport passage 201, and can close the entire entrance transport passage 201.

Further, one end line piece of a spring body 207 as a closing biasing means is pressed against the arm member 206, and the second shutter member 203 is maintained at the passage blocking position by the biasing force of the spring body 207. It is like this. Above spring body
The main body of 207 is a stud pin 20 fixed to the side plate 204.
Attached to 8. The second shutter member 203
Is abutted on the stud pin 208 when fully opened, and the opening operation is restricted.

On the other hand, an arm member 209 projects downward from the lower edge of FIG. 2 of the first shutter member 202 in FIG. 2, and the first shutter member 202 is connected to the solenoid 230 via the arm member 209. Is connected to the output shaft of.
When the solenoid 230 is turned on / off, the first shutter member 202 is projected into the entrance conveyance passage 201 to close the passage, or is retracted from the entrance conveyance passage 201 to open the passage. ing.
The first shutter member 202 has a width dimension that shields a part of the entrance transport passage 201.

Further, a spring body 231 serving as a closing biasing means is mounted between the arm member 209 and the output shaft of the solenoid 230, and when the solenoid 230 is in an off state, the spring body 231 biases the first force. A shutter member 202 is projected into the entrance conveyance passage 201 to close the passage.

As described above, the two shutter members 202 and 203 are juxtaposed so as to be close to each other in the magnetic card transfer direction.
The second card placed on the card insertion side (left end in FIG. 1)
A stud pin 232 is fixed to the shutter member 203 as an interlocking device that projects toward the first shutter member 202. On the other hand, on the side of the first shutter member 202, a long hole 233 as an interlocking means for penetrating the stud pin 232.
Is provided. The long diameter of the long hole 233 is formed so as to have a predetermined length in the opening / closing operation direction of the second shutter member 203 (vertical direction in the first drawing).

That is, first, when both the shutter members 202 and 203 are in the closed state, the elongated hole 233 (the first shutter member 202
Side), the stud pin 232
The (second shutter member 203 side) is brought into a contact state, whereby the closing operation of the second shutter member 203 is regulated.

Then, when the first shutter member 202 is opened downward from FIG. 3 from this state, the elongated hole 233 and the stud pin 232 are opened.
The output of the solenoid 230 is transmitted due to the engagement relationship with, and the opening of the second shutter member 203 is interlocked.
When the first shutter member 202 is returned to the original closed state, the second shutter member 203 is also returned to the closed state by the biasing force of the spring body 207. In this way, the opening / closing operation of the second shutter member 203 is performed in conjunction with the opening / closing operation of the first shutter member 202.

On the other hand, the elongated hole 233 extends toward the lower side in FIG. 3 so as to have a sufficient length, and even when the second shutter member 203 is fully opened by some external force, the second hole Shutter member 203 side stud pin 232
Does not come into contact with the lower end edge of the elongated hole 233 in the first illustration. That is, the second shutter member 203 is allowed to perform an opening / closing operation independent of the opening / closing operation of the first shutter member 202.

In addition, a pair of pre-heads 235, 235 for detecting the magnetic stripe provided on the magnetic card is installed in the middle of the entrance transport passage 201. These pre-heads 235, 235 are provided so as to face each other vertically in the entrance transport passage 201, and are provided in a substantially central portion on the inner space side of the escape hole 206a provided in the arm member 206 of the first shutter member 202. It is arranged.

In the apparatus of such an embodiment, first, when the magnetic card as the recording medium is not inserted in the entrance transport passage 201, both the first shutter member 202 and the second shutter member 203 are spring bodies 207 as the closing biasing means. And the spring body 231 keeps the inlet transport passage 201 in the closed position. Such a double shutter structure prevents tampering with the inside of the conveyance path 201 or prevents dust from entering.

Depending on the mischief, the second shutter member 203 may be pushed down, but the second shutter member 203
The 203 is only pushed down by itself, and the first shutter member 202 on the back side thereof is not pushed down by hand. Therefore, further mischief is completely prevented.

On the other hand, when the magnetic card is inserted into the entrance conveyance path 201, first the solenoid 230 as the driving means is used to
The shutter member 202 is operated so as to open the entrance conveying passage 201, and then the second shutter member 203 is operated so as to open the entrance conveying passage 201 in conjunction with the opening operation of the conveying passage of the first shutter member 202. As a result, the entrance transport passage 201 is completely opened. When the magnetic card is sent into the card transport passage in the apparatus main body 1 through the entrance transport passage 201, predetermined information is written in the magnetic stripe of the magnetic card by the magnetic head in the apparatus main body 1, or the magnetic stripe is written in the magnetic stripe. The written information is reproduced.

Although the present invention is applied to the card reader in the above embodiment, the present invention can be applied to various other reading / writing devices such as a passbook reader or a receipt reader. Is.

(Effect of the Invention) As described above, the present invention forms the double shutter structure by arranging the first shutter member and the second shutter member, which are opened and closed by the interlocking relationship, side by side in the conveyance path of the recording medium. Since the second shutter member can be opened and closed independently of the first shutter member, a double shutter structure having a simple mechanism can surely prevent mischief in the conveyance path or intrusion of dust. You can

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, FIG. 2 and FIG. 3 are a plan view, a side view and a front view showing a card reader according to an embodiment of the present invention. 1 ... Device main body, 2 ... Shutter mechanism, 201 ... Entrance conveyance passage, 202 ... First shutter member, 203 ... Second shutter member, 207, 231 ... Spring body (closing biasing means), 2
30 …… Solenoid (driving means), 232 …… Stud pin, 233 …… Oval hole (interlocking means).

Claims (1)

[Scope of utility model registration request] 1. A shutter mechanism for a recording medium transport passage, comprising a shutter member for opening and closing a transport passage for transporting a recording medium, wherein a double shutter mechanism is provided in the transport direction of the recording medium. A first shutter member that is arranged in parallel and is provided on the back side in the transport direction of the recording medium, a second shutter member that is provided on the insertion port side of the recording medium, and a transport path for the first shutter member and the second shutter member. Closing biasing means for maintaining the first shutter member in the closed position, a solenoid for opening and closing the transfer passage in the first shutter member, and the second shutter in conjunction with the opening and closing operation of the transfer passage in the first shutter member. The output of the solenoid is transmitted to the shutter member to cause the second shutter member to perform the opening / closing operation of the transport passage, and at the same time, to the first shutter. An opening / closing operation of the second shutter member that is independent of the opening / closing operation of the shutter member within a certain range;
A shutter mechanism for a recording medium conveyance path, comprising: