JPS6248315B2 - - Google Patents

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a memory card writing/reading device that holds a memory card and exchanges signals between the recording section of the memory card and the main body of the memory card writing/reading device. The present invention relates to a signal transmission mechanism of a reading device.

[Technical background of the invention and its problems]

Conventionally, devices that write and read data using a magnetic card equipped with a magnetic recording section have been widely used, but this type of device has a magnetic head in contact with the recording section of the magnetic card, and a magnetic card and a magnetic card. It is necessary to move the magnetic head relative to the magnetic head, and a drive device and the like for this purpose are also provided, resulting in a problem that the structure becomes complicated.

Therefore, in recent years, the development of memory card writing/reading devices that write and read data using memory cards equipped with integrated circuit recording sections has been promoted.

[Purpose of the invention]

The present invention provides a signal provided in a memory card writing/reading device for holding a memory card and transmitting/receiving signals between a recording section of the card and a circuit section in the main body of the memory card writing/reading device. The purpose is to provide a transmission mechanism.

[Summary of the invention]

The signal transmission mechanism of the memory card writing/reading device according to the present invention includes a memory card holding portion and an electrical engagement portion provided inside a lid attached to the main body of the memory card writing/reading device so as to be openable and closable. When the lid is open, the memory card can be inserted into and removed from the memory card holding section, and when the lid is closed, the memory card recording section and the circuit section inside the memory card writing/reading device are connected. Electrical connection is made by an electrical engagement part, and a lid position detector is provided to detect the closed state of the lid, and the lid cannot be closed unless the memory card is inserted to the proper position. This configuration includes a lid closing prevention member that prevents the lid from closing.

[Embodiments of the invention]

1 to 8 show one embodiment of the present invention, and FIG. 1 is an external view of a memory card writing/reading device 1. As shown in FIG.

The memory card writing/reading device 1 includes a display section 5, an input section 7, and a pen mount recess 9 on the upper surface side of the main body case 3.

A pen holder 11 is provided at the front end of the bottom surface of the pen holder recess 9 as shown in FIG. The pen holder 11 has a substantially conical tube shape and has a bottom. Further, a deeper pen ejection recess 13 is provided at the rear end of the bottom surface of the pen mounting recess 9, and a pair of left and right pen holding claws 14a, 14b are formed in front of the pen ejection recess 13.

Reference numeral 15 is an input pen. This is for inputting by placing the tip on the corresponding part of the input section 7.
When not in use, the tip is inserted into the pen holder 11 as shown by the solid line in FIG. 2, or placed in the pen holder recess 9 as shown in FIG. It is made to be elastically clamped by 14b. At this time, the rear end of the input pen 15 extends above the pen ejection recess 13 as shown by the temporary line in FIG.
When taking out the pen, insert your finger into the take-out recess 13, grasp the rear end of the pen 15, and press the pair of pen holding claws 14.
It can be easily taken out by pulling it out from between a and 14b. Note that FIG. 2 is a sectional view taken along the line --- in FIG. 1.

Further, a rectangular opening 16 is provided on the upper surface of the main body case 3, and a signal transmission mechanism 17 as shown in FIG. 4 is incorporated within this opening 16.
Note that the opening 16 is closed by a lid 18 of the signal transmission mechanism 17. Note that FIG. 4 is a cross-sectional view taken along the line --- in FIG. 1.

FIG. 3 is a block diagram showing the circuit configuration of the memory card writing/reading device 1. A central control circuit (CPU) 19 is connected to a read-only memory (ROM) 22 and a random access memory via a bus line 20 and a signal line 21. Memory (RAM) 23, display drive control circuit 24, memory card control circuit 26, and keyboard control circuit 27
are connected to each other.

The ROM 22 stores program data for controlling each section. Further, the RAM 23 stores a data storage memory and the like. The display drive control circuit 24 controls lamps such as a power lamp 28, an operation lamp 29, a card insertion confirmation lamp 30, etc. provided on the upper surface of the main body case 3, and also controls the display section 5. The memory card control circuit 26 reads data from the memory card 32 via the contacts of the signal transmission mechanism 17;
Controls writing of data to the memory card 32.

Note that a clock interrupt signal is inputted to the CPU 19 from a clock circuit 33. The CPU 19 also controls the memory control circuit 26 to determine the closed state of the lid 18, and controls the display control drive circuit 24 to turn on the card insertion confirmation lamp 30.

The signal transmission mechanism 17 is configured as follows.

That is, FIG. 4 is a cross-sectional view of the signal transmission mechanism 17 (-cross-sectional view of FIG. 1), and reference numeral 41 is a substrate. This board 41 is attached by screwing through holes 43 provided at the four corners to fixing members 44 inside the main body of the memory card writing/reading device as shown in FIG. are screwed, and this terminal block 45 has a plurality of (4 x 2) leaf spring terminals 47 constituting an electrical engagement portion.
Two of them are installed facing each other. Further, the substrate 41 has support shafts 48 at both side edges of the lid 18.
It is rotatably attached via the Inside this lid body 18 is a card guide plate 49 made of a metal plate.
is fixed, and a gap is provided between the card guide plate 49 and the inner surface of the lid 18 to accommodate the memory card 32. This card information board 49
The left and right side edges are bent upward to form guide edges 52 for guiding the memory card 32, and the portions located above the terminals 47 are missing. A card retainer 53 made of a leaf spring is attached to the inner surface of the lid 18 and faces the terminals 47 through the missing portion of the card guide plate 49. Further, a card holding spring 5 formed by bending a plate spring into a substantially U-shape is provided as an elastic engagement portion at the rotating end of the inner surface of the lid 18.
4 is attached, and the card holding spring 54, the card guide plate 49, and the card presser 53 constitute a memory card holding section 55. Therefore, when loading the memory card 32,
While pushing up the curved part of the card holding spring 54 with the upper surface of the card guide plate 4 from the rotating end side of the lid body 18,
This card 32 is inserted between 9 and the lid 18. When the memory card 32 reaches the card holder 53, the upper surface is elastically pressed by the card holder 53, and when the memory card 32 is inserted to the proper position, the rear end is pressed in the insertion direction by the curved surface of the card holding spring 54. Become. Note that the reference numeral 57 indicates the memory card holding section 5.
A stopper provided at the back of the memory card 5 holds the memory card 32 in a proper position by bringing the tip of the memory card 32 into contact with the stopper.

The memory card 32 has a recording section 59 on one side as shown in FIG. 6, and when loaded into the proper position in the memory card holding section 55, the recording section 59 faces the terminals 47. Become. Further, in the recording section 59, a contact terminal 61 is provided that faces the contact point 47a of each terminal 47. These contact terminals 61 have the same number as the contacts 47a, and are configured to contact the corresponding contacts 47a when the lid body 18 is in the closed state as shown in FIG. In addition, the contact terminal 61 and contact 4 at this time
The contact pressure with 7a is between the card holder 53 and the terminal 4.
It is given by the elasticity of 7 itself.

Returning to FIG. 4 again, the card guide plate 49 is provided with an engaging piece 63 cut and raised on the lower surface in the center thereof, and is bent downward at the rotating end of the guide plate 49. A locking piece 65 is provided. Further, the engagement piece 63 is provided with a long hole 67 extending in a direction perpendicular to the support shaft 48 .

On the other hand, as shown in FIG. 5, the board 41 is provided with an engagement piece 69 cut and raised on the upper surface side, and one end of a connecting rod 71 is rotatably attached to this engagement piece 69 via a fulcrum shaft 72. is supported by This connecting rod 71 has an engaging pin 73 at the rotating end, and this pin 73 is inserted into the elongated hole 67, and the engaging pin 73 moves within the elongated hole 67 as the lid body 18 is opened and closed. is configured to do so. Note that the elongated hole 67 and the engagement pin 73
The range of rotation of the lid body 18 is also restricted by the engagement relationship with the lid body 18. Further, a spring hanging pin 74 is provided at an intermediate position of the connecting rod 71, and this pin 74 and the board 4
1, a tension coil spring 75 is stretched between the toggle mechanism and the toggle mechanism. That is, both ends of the tension coil spring 75 are located on both sides of the fulcrum shaft 72, and when the degree of opening of the lid 18 is larger than a certain value, the spring 75 exerts a biasing function against the lid 18 in the opening direction.
When the opening degree of the lid body 18 is smaller than a certain value, it exerts a biasing function in the closing direction.

Further, the board 41 is provided with a slit 77 through which the locking piece 65 is inserted, and substantially L-shaped leaf springs 79a, 79b are provided on both sides of the slit 77 on the lower surface side of the board 41. These leaf springs 79a, 79b each have a slit 77 on one side.
When the lid body 18 is in the closed state as shown in FIG. 7, the locking pieces 65 are inserted through the slit 77.
The lid body 18 is held in the closed position by being elastically held between the leaf springs 79a and 79b.
Thus, these leaf springs 79a, 79b constitute a locking mechanism 81 together with the locking piece 65.

A switch mounting piece 83 is provided on the lower surface side of the board 41.
A card insertion confirmation switch 85 as a lid position detector is attached to this attachment piece 83 by means of screws or the like. On the other hand, a card insertion confirmation switch 8 is provided on the card guide plate 49.
A cutout 87 is provided at a position corresponding to the actuation piece 85a of No. 5. When the memory card 32 is inserted and the lid body 18 is in the closed position, the memory card 32
As a result, the actuating piece 85a is pushed through the cutout 87, and the switch 85 is closed. Further, even if the lid body 18 is in the closed position, if the memory card 32 is not inserted, the operating piece 85a will not be pressed by the memory card 32, so the switch 85 will not be closed and it will not be determined that the memory card 32 has been inserted. . Furthermore,
Even if the memory card 32 is inserted, if the memory card 32 is not inserted in the predetermined position, the lid body 18 will not be closed in the predetermined position.
2, the switch 85 is not closed. However, when the switch 85 is closed, the third
The CPU 19 shown in the figure controls the control circuit 26 of the memory card 32, determines the closed state of the lid 18, and turns on the card insertion confirmation lamp. If the closed state of the lid body 18 is not maintained,
When the clock interrupt signal is input by the clock circuit 33 of the CPU 19, the card insertion confirmation lamp 30 is turned off,
Cancel card operation.

Furthermore, card insertion confirmation pins 89, 89 are protrudingly provided on the upper surface of the substrate 41 in the vicinity of the card insertion confirmation switch 85 as cover closing prevention members. This pin 89 is for preventing the lid 18 from being closed when the memory card 32 is not inserted to the proper position. When attempting to close the lid 18, the rear end of the memory card 32 comes into contact with the top end of the pin 89, as shown in FIG. 8, and the lid 18 is prevented from closing. In this case, the card insertion confirmation switch 85 cannot be closed, and therefore the insertion confirmation lamp 30 does not light up.

Next, FIGS. 9 and 10 show another embodiment, in which an optical sensor 90 having a light emitting part and a light receiving part is incorporated opposite to the extreme end of the memory card holding part 55. When the memory card 32 is inserted to a predetermined position as shown in FIG.
Reflected on the bottom surface of 2. Therefore, the light receiving section detects that the memory card 32 has been inserted to a predetermined position by receiving the reflected light, and the detection signal from the light receiving section detects that the memory card 32 and the memory card control circuit 26 It is configured so that it is possible to send and receive signals. Furthermore, when the memory card 32 is not inserted to the predetermined position as shown in FIG. 10, the light emitted from the light emitting part of the optical sensor 90 is not reflected by the memory card 32
Therefore, since the light receiving section does not receive the reflected light, it is determined that the memory card 32 is not inserted to the predetermined position. In this case, since no signal is output from the light receiving section, no signal is exchanged between the memory card 32 and the memory card control circuit 26.

In the above embodiment, the optical sensor 90 is arranged at a position where the leading end of the memory card 32 is detected, but it may be arranged at a position where the rear end of the memory card 32 is detected. Further, instead of a reflection type optical sensor, a blocking type optical sensor may be used.

[Effects of the Invention] As described above based on the embodiments, the signal transmission mechanism of the memory card writing/reading device according to the present invention has a lid attached to the main body of the memory card writing/reading device so as to be openable and closable. A memory card holder is provided on the inside, as well as an electrical engagement part. When the lid is open, the memory card can be inserted into and removed from the memory card holder, and when the lid is closed, the memory card can be inserted into and taken out from the memory card holder. The recording section of the card and the circuit section within the main body of the memory card writing/reading device are electrically connected to each other by an electrical engagement section.

Therefore, simply by inserting the memory card into the memory card holding section and closing the lid, signals can be exchanged between the recording section of the memory card and the circuit section inside the main body of the device. By opening it, the memory card can be easily taken out.

Additionally, by providing a lid closing prevention member that prevents the lid from closing when the memory card is not inserted to the correct position, and a lid position detector that detects the closed state of the lid. , the inserted state of the card can be easily confirmed, and malfunctions caused by operations when the card is not fully inserted can be prevented.

[Brief explanation of the drawing]

1 to 8 show an embodiment of the present invention. FIG. 1 is an external perspective view of a memory card writing/reading device, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. A block diagram showing the circuit configuration of the device, FIG. 4 is a cross-sectional view taken along the line - in FIG. 1, FIG. 5 is a plan view with the lid of the signal transmission mechanism removed, and FIG.
Figure 7 is a plan view of the memory card, Figure 7 is a sectional view of the signal transmission mechanism with the lid closed, Figure 8 is a partial sectional view of the signal transmission device showing the memory card being incompletely inserted, Figures 9 and 7 are FIG. 10 shows another embodiment of the present invention, and FIG. 9 is a sectional view of the lid in a closed state;
FIG. 10 is a sectional view showing a state in which the memory card is incompletely inserted. 3... Main body case, 18... Lid body, 19...
CPU, 26...Memory card control circuit, 32...
... Memory card, 45 ... Terminal block, 47 ... Leaf spring terminal, 55 ... Memory card holding part, 59 ...
...Recording section, 61...Contact terminal, 85...Card insertion confirmation switch (lid position detector), 89...Card insertion confirmation pin (lid closing prevention member), 90...
...light sensor.

Claims (1)

[Scope of Claims] 1. A lid body provided to be openable and closable, a memory card holding portion provided inside the lid body to enable insertion and removal of a memory card in a state in which the lid body is open, and the lid body. an electrically engaging portion that electrically connects the recording portion of the memory card held at a proper position in the memory card holding portion with the circuit portion within the memory card writing/reading device body when the body is closed; A lid position detector that detects the closed state of the lid; and a lid closing device that brings the memory card into contact with the memory card and prevents the lid from closing when the memory card is incorrectly positioned in the memory card holder. A signal transmission mechanism for a memory card writing/reading device, characterized by comprising a blocking member. 2. The signal of the memory card writing/reading device according to claim 1, wherein the memory card holding section has an optical sensor that detects whether or not the memory card is inserted to a predetermined position. transmission mechanism.