JP3706764B2 - Shutter opening / closing mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shutter opening / closing mechanism. More specifically, the present invention relates to a shutter opening / closing mechanism suitable for opening / closing a card insertion slot such as a card reader (writer).
[0002]
[Prior art]
The card reader is provided with a shutter opening / closing mechanism at the card insertion slot (gate) for the purpose of crime prevention and tampering prevention. As shown in FIG. 6 , the conventional shutter opening / closing mechanism closes the entire area of the card insertion slot 101 by a shutter plate 103 having a rotation center 102 on either the left or right side of the card insertion slot 101. That is, when the solenoid 104 is actuated, the shutter plate 103 rotates about the support shaft (rotation center) 102 to open and close the card insertion slot 101. The shutter plate 103 completely closes the card insertion slot 101 by dropping into a groove provided so as to cross the card travel path. When the closed state of the shutter plate 103 that has fallen into the groove is detected by the micro switch 105 and the closed state of the shutter plate 103 cannot be detected while waiting for the card, the gap between the shutter plate 103 and the groove is determined. Therefore, it is determined that a card trap member for the purpose of crime is set, and the use of the card reader is stopped.
[0003]
[Problems to be solved by the invention]
However, in the shutter opening / closing mechanism described above, the shutter plate 103 is rotated around the support shaft 102 to open / close the card insertion slot 101, so that the groove into which the shutter plate 103 is dropped at a position away from the support shaft 102. However, the depth of the groove can only be set to L1 (<L2) near the support shaft 102. Therefore, when the card trap member is set at a position away from the support shaft 102, the card trap member is relatively easily detected by the microswitch 105, but the card trap member is set at a position close to the support shaft 102. If the card trap member is thin and soft, the shutter plate 103 is rotated to a position that is almost the same as when the shutter plate 103 is rotated to the closed position. The member was difficult to detect and the detection performance was poor.
[0004]
Further, since the shutter plate 103 is rotated around the support shaft 102, it is necessary to make the stroke farther from the support shaft 102 larger in order to ensure the stroke amount in the portion near the support shaft 102 of the shutter plate 103. A large solenoid 104 is required. Further, when the user inserts the card quickly, the card may hit the shutter plate 103 before being completely opened, but the shutter plate is also used when the card hits the shutter plate 103 at a position far from the spindle 102. In order to be able to open 103 reliably, it is necessary to increase the output of the solenoid 104, which also necessitates an increase in the size of the solenoid 104.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a shutter opening / closing mechanism that is excellent in detection performance of foreign matter such as a card trap member and that can downsize a solenoid that drives a shutter plate.
[0006]
[Means for Solving the Problems]
In order to achieve such an object, the invention according to claim 1 is a shutter opening / closing mechanism comprising a shutter plate movably provided between a closed position for closing the card travel path and an open position for opening the card travel path. in mechanism includes a solenoid for moving the shutter plate, and a coupling member for coupling to the shutter plate driving force of the solenoid, the coupling member comprises a slide member which is moved by a solenoid, driven by the sliding member Two rotating members connected so as to operate, and the opening and closing side end surfaces of the shutter plate are closed substantially parallel to the card travel path in the closed position, and the opening and closing side end surfaces of the shutter plate by the two rotating members Is configured to move substantially in parallel with the card travel path , and in the closed position, the block is prevented from moving from the rotating member side. A stop is formed between the two rotating members and the slide member .
[0007]
When the card trap member is sandwiched between the shutter plates, the shutter plates cannot be completely closed. Regardless of the position of the card trap member or the like, the gap between the shutter plates is almost the same. Accordingly, the card trap member and the like can be similarly detected over the entire card width. Further, since the shutter plate moves substantially parallel to the card travel path, the card travel path can be opened over the entire area in the card width direction with a small amount of movement, and the shutter plate can be moved with a light force. it can.
[0009]
When solenoid moves the sliding member, two pivot members to move the shutter plate rotates simultaneously. Since the two rotating members are connected to the same slide member, they are similarly rotated. Similarly, since the two rotating members that rotate rotate move both ends of the shutter plate, the shutter plate moves substantially parallel to the card travel path.
[0011]
Since the two rotating members are driven by the slide member, when the solenoid moves the slide member, the two rotating members rotate. Thus, the shutter plate can be moved by operating the solenoid. On the other hand, since the blocking portion is provided between the rotation member and the slide member, the slide member does not follow the movement of the rotation member. For this reason, even if the shutter plate in the closed position is forcibly moved to the open position, the slide member cannot be moved, and therefore the shutter plate cannot be moved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of the present invention will be described in detail based on the best mode shown in the drawings.
[0014]
1 to 4 show an example of an embodiment of a shutter opening / closing mechanism of the present invention. The shutter opening / closing mechanism is provided so as to be movable between a closed position (solid line position in FIG. 1) for closing the card traveling passage 19 and an open position (two-dot chain line position in FIG. 1) for opening the card traveling passage 19. The shutter plate 2 includes a driving source 3 for moving the shutter plate 2 and a connecting member 4 for connecting the driving force of the driving source 3 to the shutter plate 2. The opening / closing side end surface 2a of the shutter plate 2 is closed substantially parallel to the surface of the card traveling passage 19 in the closed position, and the opening / closing side end surface 2a of the shutter plate 2 is moved substantially parallel to the surface of the card traveling passage 19 by the driving source 3. It is configured.
[0015]
In this embodiment, the drive source 3 is, for example, a solenoid, and the connecting member 4 includes a slide lever (slide member) 5 that is moved by the solenoid 3 and two swing arms (rotating members) 6 that are connected to the slide lever 5. The opening / closing side end surface 2a of the shutter plate 2 is configured to move substantially parallel to the surface of the card travel path 19 by the two swing arms 6. Further, the two swing arms 6 are connected so as to be driven by the slide lever 5, and a blocking portion 7 that prevents movement from the swing arm 6 side is provided between the two swing arms 6 and the slide lever 5 in the closed position. Is formed.
[0016]
A solenoid 3 is attached to a base plate 9 to which the insertion port unit 8 is attached. The driving force of the solenoid 3 is transmitted to the slide lever 5 via the spring pin 10. The slide lever 5 is slidably supported on the base plate 9 by two shafts 11.
[0017]
The swing arm 6 is supported by the base plate 9 so as to be rotatable by a shaft 20. A shutter plate 2 is rotatably connected to one end of the swing arm 6 by a shaft 12. Further, as shown in detail in FIG. 5, an inverted L-shaped hole 6a is provided at the other end of the swing arm 6, and a shaft 21 fixed to the slide lever 5 passes through the hole 6a. . When the shutter plate 2 is moved to the closed position, the portion facing the shaft 21 is the blocking portion 7. In addition, the contact portion 13 is a portion where the shaft 21 contacts due to the movement of the slide lever 5.
[0018]
The slide lever 5 is provided with a detecting portion 5a of the micro switch 14, and is set so that the micro switch 14 is turned on when the shutter plate 2 is completely moved to the closed position. The micro switch 14 supplies an ON signal to a host device (not shown). A pre-head 15 is attached to the insertion slot unit 8 so that insertion of the card 1 can be detected. Further, a groove 18 is provided between the insertion port unit 8 and the base plate 9 to be a closed position when the shutter plate 2 is dropped.
[0019]
When the card 1 is inserted into the card insertion slot 16 and the insertion of the card 1 is detected by the pre-head 15, the solenoid 3 is turned on. The solenoid 3 pulls the spring pin 10 against the spring force of the return spring 17 and slides the slide lever 5 in the direction of arrow A in FIG. Therefore, the shaft 21 fixed to the slide lever 5 moves in the inverted L-shaped hole 6a and hits the abutting portion 13 to push it forward, thereby rotating the swing arm 6 in the direction of arrow B. As a result, the shutter plate 2 is lifted and moved to the open position, and the card insertion slot 16 (card travel passage 19) is opened as shown by a two-dot chain line in FIG. At this time, since the two swing arms 6 lift both ends of the shutter plate 2 in the same manner, the opening / closing side end surface 2 a of the shutter plate 2 moves substantially parallel to the card travel path 19.
[0020]
On the other hand, when the solenoid 3 is turned off, the spring pin 10 is pushed back by the return spring 17 and the slide lever 5 returns to the original position. Accordingly, the shaft 21 that has pushed the contact portion 13 moves in a direction away from the contact portion 13, thereby releasing the force that lifted the shutter plate 2, so that the shutter plate 2 moves the swing arm 6 in the direction of arrow B. And descends while rotating in the opposite direction. That is, as shown by a solid line in FIG. 1, the shutter plate 2 closes the card insertion slot 16. At this time, since the two swing arms 6 lower both ends of the shutter plate 2 at the same time, the opening / closing side end surface 2a of the shutter plate 2 moves substantially in parallel and enters deeply into the groove 18 over the entire width of the card.
[0021]
When the shutter plate 2 is completely moved to the closed position, the shaft 21 fixed to the slide lever 5 is moved to a position facing the blocking portion 7 of the hole 6a. In this state, even if the shutter plate 2 is lifted up and forcibly opened, the shutter plate 2 cannot be opened because the blocking portion 7 hits the shaft 21 and the swing arm 6 is locked. That is, a mechanism for preventing the shutter plate 2 from being opened due to mischief or the like can be provided.
[0022]
In this shutter opening / closing mechanism, the shutter plate 2 is moved in parallel to open and close. Therefore, the card insertion slot 16 can be opened and closed with a small amount of movement over the entire width of the card. Further, even when the card 1 is pressed against the shutter plate 2 before the user quickly inserts the card 1 and completely opens it, the shutter plate 2 can be opened with a small force. For these reasons, a small solenoid 3 can be used.
[0023]
Further, since the shutter plate 2 is moved in parallel and opened and closed, the open / close side end surface 2a of the shutter plate 2 can be deeply fitted into the groove 18 over the entire width of the card in the closed position. For this reason, it can detect similarly even if a card trap member is inserted | pinched in any position, and the detection performance of a card trap member improves.
[0024]
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention .
[0025]
For example , it is not limited to the lifting and opening method in which the shutter plate 2 is lifted and moved to the open position, but may be a hanging and opening method in which the shutter plate 2 is moved down to the open position.
[0026]
【The invention's effect】
As described above, the shutter opening / closing mechanism according to claim 1 has a solenoid for moving the shutter plate and a connecting member for connecting the driving force of the solenoid to the shutter plate, and opens and closes the shutter plate. Since the side end face is closed substantially parallel to the card travel path in the closed position and the opening / closing side end face of the shutter plate is moved substantially parallel to the card travel path by the solenoid , the entire area in the card width direction Thus, it is possible to reliably detect the foreign matter sandwiched between the shutter plates. For this reason, the detection performance of the card trap member can be improved. Further, since the stroke for opening and closing the shutter plate can be minimized over the entire area in the card width direction, a small solenoid can be used.
[0027]
Moreover, consolidated member has a slide member which is moved by a solenoid, a two pivot member coupled to the slide member, generally parallel to the opening and closing side end face of the shutter plate is a card traveling passage by the two rotating members Therefore, the shutter plate can be moved almost parallel to the card travel path with a simple structure.
[0028]
Further , the two rotating members are connected so as to follow the slide member, and a blocking portion that prevents movement from the rotating member side is formed between the two rotating members and the slide member in the closed position. Therefore, the shutter plate moving to the closed position cannot be forcibly moved to the open position by mischief or the like, and a mechanism for preventing such mischief or the like can be provided.
[Brief description of the drawings]
FIG. 1 is a front view showing an example of an embodiment of a shutter opening / closing mechanism of the present invention.
FIG. 2 is a plan view of the shutter opening / closing mechanism.
FIG. 3 is a cross-sectional view showing a state in which the shutter plate of the shutter opening / closing mechanism closes the card travel path.
FIG. 4 is a schematic configuration diagram showing a mechanism for detecting a closed position of the shutter opening / closing mechanism.
FIG. 5 is an enlarged view of a main part of a swing arm of the shutter opening / closing mechanism.
FIG. 6 is a schematic configuration diagram of a conventional shutter opening / closing mechanism.
[Explanation of symbols]
1 Card 2 Shutter plate 2a Open / close side end face 3 Solenoid (drive source)
4 Connecting member 5 Slide lever (slide member)
6 Swing arm (rotating member)
7 Blocking section 19 Card travel path

Claims (1)

In a shutter opening / closing mechanism comprising a shutter plate movably provided between a closed position for closing the card travel passage and an open position for opening the card travel passage, a solenoid for moving the shutter plate; A connecting member for connecting the driving force of the solenoid to the shutter plate, and the connecting member includes a slide member that is moved by the solenoid and two rotations that are connected to be driven by the slide member. And an opening / closing side end face of the shutter plate is closed substantially parallel to the card travel path in the closed position, and the opening / closing side end face of the shutter plate is moved to the card travel path by the two rotating members. When configured to move substantially in parallel, and, in the closed position, to block movement from the rotating member side A shutter opening and closing mechanism which blocking portion is characterized by comprising formed between the two rotating members and the slide member.

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