JPS6248314B2 - - 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 stopper for abutting the leading end of the memory card in the memory card holder, and an elastic engagement part for the memory card insertion slot to hold the memory card. When inserting into the above holding part,
When the memory card is pressed against the elastic engagement part and inserted while elastically deforming, the elastic engagement part returns elastically when it reaches the proper position where it contacts the stopper, holding the memory card in the proper position, and the memory card writing/reading device The circuit section in the main body and the recording section of the memory card are electrically connected to each other by an electrically engaging section.

[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 imaginary 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 controls reading data from and writing data to the memory card 32 via the contacts of the signal transmission mechanism 17.

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. As shown in FIG. 5, 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. A terminal block 45 is screwed onto the top surface of the board 41, and a plurality of (4 x 2) leaf spring terminals 47 constituting an electrical engagement portion are mounted on this terminal block 45.
The books are installed facing each other. In addition, the substrate 41
Both end portions of the lid body 18 are rotatably attached via a support shaft 48 . This lid body 18
A card guide plate 49 made of a metal plate is fixed to the inside of the cover 18, and a gap is provided between the card guide plate 49 and the inner surface of the lid 18 for accommodating the memory card 32. The card guide plate 49 has left and right side edges bent upward to form guide edges 52 for guiding the memory card 32, and the terminals 47
...The part located above is 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. Also, the lid body 18
A card holding spring 54 formed by bending a plate spring into a substantially U-shape is attached as an elastic engagement part to the rotating end of the inner surface, and the card holding spring 54, the card guide plate 49, and the card presser 53 are connected to each other. A memory card holding section 55 is configured. Therefore, when loading the memory card 32, the card is inserted between the card guide plate 49 and the lid 18 from the rotating end side of the lid 18 while pushing up the curved part of the card holding spring 54 on the top surface of the memory card 32. Insert 32. 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 card holding spring 5
The rear end is pressed in the insertion direction by the curved surface 4. Note that reference numeral 57 is a stopper provided at the back of the memory card holding section 55, and is a stopper provided at the back of the memory card holding section 55.
By touching the tip of the memory card 3
2 in the proper position.

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. Also, the engagement piece 6
3 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 substrate 41 is provided with a slit 77 through which the locking piece 65 is inserted, and substantially L-shaped leaf springs 79a and 79b are provided on both sides of the slit 77 on the lower surface side of the substrate 41. These leaf springs 79a, 79b each have a slit 77 on one side.
When the lid 18 is in the closed state as shown in FIG. 7, the locking pieces 65 are inserted through the slit 77.
is elastically clamped by both springs 79a and 79b to hold the lid 18 in the closed position. 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 is attached to this attachment piece 83 by means of screws or the like. On the other hand, the card guide plate 49 is provided with a cutout 87 at a position corresponding to the operating piece 85a of the card insertion confirmation switch 85. When the memory card 32 is inserted and the lid 18 is in the closed position, the memory card 32 pushes the actuation piece 85a through the cutout 87 and the switch 85 is closed. Furthermore, 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 it is not inserted in the predetermined position, the lid 18 will not be closed in the predetermined position, and therefore the actuating piece 85a will not be pushed by the memory card 32, so the switch will not be activated. 85 is not closed. When the switch 85 is closed, the CPU 19 shown in FIG. 3 controls the control circuit 26 of the memory card 32, determines whether the lid 18 is closed, and lights up the card insertion confirmation lamp. If the closed state of the lid body 18 is not maintained, the card insertion confirmation lamp 30 is turned off when a clock interrupt signal is input by the clock circuit 33 of the CPU 19, and the card operation is stopped.

Furthermore, card insertion confirmation pins 89 are protruded from the upper surface of the board 41 at positions near the card insertion confirmation switch 85. This pin 89
This is to prevent the lid 18 from being closed when the memory card 32 is not inserted to the proper position. When attempting to do so, 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 card insertion confirmation lamp 30 does not light up.

Next, FIG. 9 shows a modified example of the elastic engagement part, and reference numeral 91 is an engagement body attached to the rotating end (i.e., memory card insertion slot) of the lid 18 so as to be slidable in the vertical direction. . This engaging body 91 has a spherical lower end and is constantly pressed down from above by a spring 92.

Therefore, when inserting the memory card 32, the engaging body 91 is pushed up by the upper surface of the card 32. When the card 32 reaches the proper position, the engaging body 91 is returned downward by the spring 92, and its spherical surface presses the end of the card 32, thereby holding the card 32 in the proper position.

〔Effect 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 includes a stopper for abutting the leading end of the memory card in the memory card holder, and An elastic engagement portion is provided in the insertion slot, and when inserting the memory card into the holding portion, the elastic engagement portion is pressed with the memory card and inserted while being elastically deformed. When the memory card reaches the appropriate position where it contacts the stopper, the elastic engagement occurs. The part elastically returns to hold the memory card in the proper position, and the electrical connection between the circuit part in the main body of the memory card writing/reading device and the recording part of the memory card is made by the electrically engaging part. It is configured.

Therefore, simply by inserting the memory card into the memory card holding section, the memory card is reliably held at a proper position and signals can be exchanged with the circuit section within the main body of the apparatus.

In addition, when inserting a memory card, there is a feeling of resistance due to the elastic engagement part at first, but when the memory card approaches the correct position, that resistance suddenly disappears and the holding function of the elastic engagement part is performed, so that the so-called "click" effect occurs. This gives you a good feeling and allows you to perform a reliable insertion operation.

[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.
The figure is a plan view of the memory card, FIG. 7 is a sectional view of the signal transmission mechanism with the lid closed, FIG. 8 is a partial sectional view of the signal transmission device showing the memory card not fully inserted, and FIG. 9 is a sectional view of the signal transmission device with the lid closed. It is a partial sectional view showing a modification. 3...Main case, 19...CPU, 26...
Memory card control circuit, 45...terminal block, 47...
...Plate spring terminal, 54...Card holding spring (elastic engagement part), 55...Memory card holding part, 57...
...stopper, 59...recording section, 61...contact terminal, 91...engaging body (elastic engagement part), 92...spring.

Claims (1)

[Scope of Claims] 1. A memory card holder into which a memory card is inserted from a memory card insertion slot, a stopper which abuts the tip of the memory card inserted into the memory card holder, and a memory card in the memory card holder. It is provided in the card insertion slot, and when the memory card is inserted, it is elastically deformed by being pushed by the memory card, and when the memory card is inserted to the position where it contacts the stopper, it elastically returns to place the memory card in the proper position in the memory card holding section. an electrically engaging part that electrically connects the recording part of the memory card inserted in the proper position in the memory card holding part and the circuit part in the main body of the memory card writing/reading device. A signal transmission mechanism for a memory card writing/reading device, comprising: 2. A signal transmission mechanism for a memory card writing/reading device according to claim 1, wherein the elastic engagement portion is formed of a leaf spring.