JPS60173789A - Memory card loading mechanism of memory card write and read device - Google Patents

Abstract

PURPOSE:To obtain a memory card loading mechanism which is provided in a memory card write/read device and holds a memory card to connect surely electrically a memory card-side contact and a signal transmitting circuit provided in a casing of the memory card write/read device. CONSTITUTION:A substrate 2 attached to a casing 1 of the memory card write/ read device is formed with a synthetic resin, and an elastic pressing piece 4 which holds stably a memory card 3, a card insertion confirming projecting part 5 which discriminates the insertion state of the memory card 3, and a stopper part 7 which controls a degree of opening of a memory card holding plate 6 which is provided freely openably and closably are formed into one body together with said substrate 2, and a contact 9 in the side of the memory card 3 and a signal transmitting circuit 10 provided in the casing 1 are connected to each other through a contact 8 attached to said substrate 2. Consequently, not only the constitution is simple and operations are performed surely but also this mechanism is easily set into the casing 1 because it is made into a unit.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a method for holding a memory card and connecting a contact point on the memory card side to a signal transmission circuit provided in a housing of a memory card writing/reading device. The present invention relates to a memory card loading mechanism of a memory card writing/reading device that performs electrical connection.

[Technical background of the invention and its problems]

Conventionally, devices that write and read data using magnetic cards equipped with magnetic recording sections have been widely used.
This type of device requires the magnetic head to be brought into contact with the recording section of the magnetic card and to move the magnetic card and the magnetic head relative to each other, and a drive device for this purpose is also provided, resulting in a complicated structure. was there.

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

[Purpose of the invention]

An object of the present invention is to provide a memory card writing/reading device that holds a memory card and connects a contact point on the memory card side and a signal transmission circuit provided in a housing of the memory card folding/reading device Et. It is an object of the present invention to provide a memory card loading mechanism with a simple configuration that performs electrical connection.

[Summary of the invention]

As shown in FIG. 1, the memory card loading mechanism of the memo and card writing/reading device according to the present invention has a substrate 2 made of synthetic resin, which is attached to the housing 1 of the memory card writing/reading device. An elastic suppressing piece 4 that stably holds the card 3, a card insertion confirmation protrusion 5 that determines the insertion state of the memory card 3, and a stopper part 7 that controls the opening degree of the memory card holding plate 6 provided so as to be openable and closable.
is formed integrally with the substrate 2, and is configured to connect the contact 9 on the memory card 3 side and the signal transmission circuit 10 provided inside the housing 1 via the contact 8 attached to the substrate 2. be done. Therefore, the number of parts can be reduced and the configuration can be simplified. Furthermore, since it is unitized, it can be easily assembled into the housing J.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to FIG. 2 and subsequent drawings. Note that in this example, memory card writing/
A portable document data input device is shown as an example of the reading device, and FIG. 2 shows its appearance. In the figure, reference numeral 11 denotes a casing, and the casing 1 is formed such that the relationship among length A, width B, and height C is B>A>C.

The housing 11 has a built-in signal transmission circuit 13 for exchanging write/read signals with the memory card 12, and is used by placing the housing 11 on a substantially horizontal surface. A key key 14 is provided at a right-hand position on the front of the top surface of the housing 1 for giving instructions to the signal transmission circuit 13 by manual input, and a key key 14 is provided at a left-hand position on the front top surface of the housing 1, into which a memory card 12 is loaded. Card loading mechanism 15
is provided. Further, a display section (for example, a liquid crystal display) 16 that displays the operation contents of the signal transmission circuit 13 is provided at the rear position of the upper surface of the casing 11, and is long in the left and right directions along the front edge of the display section 16. A pen mounting groove 17 is provided. Furthermore, a pen storage section 18 that can be opened and closed is provided on the right edge of the upper surface of the housing 11. The keyboard 14 is used to perform desired input by applying the tip of the input pen 19 to an appropriate position. The input pen 19 is placed in the pen mounting groove 17, and is stored in the pen storage section 18 when the input device is carried.

As shown in FIG. 3, the surface of the key bead 14 is divided into three areas as a whole, namely, the first character key group area 20. It is roughly divided into a second character key group area 2 and a control character key group area 22. 1st. The keys in the second character key group area 20 and 21 are mainly for inputting character data, and as shown in FIG. Key 20b.

A small number of kanji keys 20c, numeric keys 20d, and various code keys 20e used for mathematical expressions are provided. Further, in the second character key group area 2, alphabet character keys 21a and period marks 21b'4 are provided.

Furthermore, the control character key group area 22 is provided with various keys for inputting control data for giving document creation instructions, such as an execution key 22a, a kernel movement key 22b, and a kanji conversion key 22c.

As shown in FIG. 5, the memory card 12 has a semiconductor integrated circuit 12b built into a glass board 12a and is about the size of a business card, and is held on the back side of a memory card holding plate 23.

In addition, FIG. 5 shows the back side of the memory card 12, and in the figure, 12c, . . . are contacts arranged in two rows of four contacts. The memory card holding plate 23 is made of synthetic resin, and its right end in FIG. 2 is pivoted to the housing 1, and its left edge can be rotated upward (see FIG. 7). The structure is such that the memory card 12 can be inserted and removed from the side.

FIG. 6 is a block diagram showing the circuit configuration of the portable document data input device, the main part of which is shown in the signal transmission circuit 13.
It is occupied by That is, central control circuit (CPU) 2
4 has a read-only memory (ROM), ?4, via a pass line 25 and a signal line 26. 7. Random access memory (RAM) 213, display control drive circuit 29. A memory card control circuit 30 and a key bead control circuit 31 are connected to each other. Said ROM'2
7 stores programmable data for controlling each part. Further, the RAM 2B stores a data storage memory and the like. The display control drive circuit 29 is mounted on the housing 1
Power lamp 3 and operation rung 33 provided on the top of the
．． It controls lamps such as the card insertion confirmation lamp 34 and the display section 16. The memory card control circuit 30 controls reading of data from and writing of data to the memory card 12 via a contact 47 in the memory card loading mechanism 15, which will be described later. The CPU 24 controls the memory card control circuit 30 to determine that the memory card holding plate 23 is in the closed position, and controls the display control drive circuit 29 to light up the card insertion confirmation run f34.

Further, the memory card loading mechanism 15 is constructed as follows. 7 shows the memory card loading mechanism 15 taken out from the housing 11, and FIG. 8 shows the memory card holding plate 23 taken out from the board 35.

Like the memory card holding plate 23, the board 35 is made of synthetic resin, and is attached from the inside to the periphery of a horizontally long opening provided in the top plate of the housing 11.

The right edge of the memory card holding plate 23 is rotatably supported at one end of the upper surface of the board 35 via a support shaft 36, so that the horizontally long opening is closed by the holding plate 23. It is configured. In addition, 35a in the figure is the support shaft 36.
23a is a bearing part on the board 35 side, and 23a is a bearing part on the side of the substrate 35.
This is the bearing part on the holding plate 23 side. And the support shaft 36
There are E-rings 3 on both ends of the
6a is attached, and a coil spring 37 is attached to one end side of the support shaft 36 for biasing the holding plate 23 in the opening direction. In addition, 38 in the figure is a U-shaped stopper part 9 provided protrudingly on the upper surface side of the board 35, and this stopper part 38 is brought into contact with an engaging protrusion 39 provided protrudingly provided on the side surface of the holding plate 23. It is configured to limit the amount of rotation of the holding plate 23 in the opening direction. Further, reference numeral 40 in the figure denotes a presser operation section formed at the rotating end of the upper surface of the holding plate 23, and is formed in a jagged shape to prevent fingers from slipping. In addition, a guide edge 41 is formed on the lower surface side of the memory card holding plate 23 to guide the memory card 12 when the memory card 12 is inserted or removed, and a hook portion 42 is formed at the rotating end of the holding plate 230 so that the hook portion 42 extends downward. It is protruding towards the front.

A terminal unit 43 (see FIG. 9) is attached to a portion of the board 350 near the support shaft 36. This terminal unit 43 is installed by fitting into a square opening provided in the board 35 from the back side, and there are transparent holes at four corners of the unit board 440 for screwing to the board 35. A hole 45 is provided. Two terminal blocks 46 are attached to the upper surface of the unit board 44, and each terminal block 4
Four terminal pieces 47 made of leaf springs are attached to the upper surface of each of the terminals 6. The tips of the terminal pieces 47 attached to both terminal blocks 46 are placed close to each other, and each upper surface tip is made of platinum, gold, and silver alloy (PGS), which has good environmental resistance.
A contact point 47a consisting of a contact point 47a (referred to as . . . As shown in FIGS. 10 and 11, each terminal piece 47 is inclined upward from the terminal block 47 side toward the tip, and when loading the memory card 12, the contact 47a is connected to the contact 12c on the memory card 12 side. The contact point 47m is also displaced in the horizontal direction (displacement amount δ), so the memory card 1
It comes into sliding contact with the contact point 12a on the second side by the amount of displacement δ.

Therefore, even if there is some dirt or oxide film on the contacts 12c of the memory card 12, no contact failure will occur. Note that the displacement amount δ is about 0.4 m. The unit board 44 has printed wiring 4 connected to each terminal piece 47.
8 are formed, and these printed wirings 48 are connected to the memory card control circuit 30 via lead wires 49.

Returning to FIG. 8 again, a pair of left and right elastic suppressing pieces 50 are formed on the upper surface of the substrate 35 to press upwardly approximately the center position of the memory card 12. Further, a hook member 5 is pivotally supported on the Eta portion of the substrate 35 on the opposite side from the bearing portion 35m. As shown in FIG. 12, this hook member 51 is rotatable about a shaft 52 as a fulcrum, and has a hooked portion 51m at one end that protrudes toward the upper surface of the substrate 35, and the other end toward the lower surface of the substrate 35. The horizontal portion 61b extends substantially horizontally. and the first coil spring 53
It is constantly biased in the counterclockwise direction in Figure 2. The hooked portion 51th is located below the hook portion 42 when the memory card holding plate 23 is in the open position,
When the memory card holding plate 23 rotates in the closing direction, the hook portion 42 slides into contact with the upper end of the hook-shaped portion 51h, causing the hook member 51 to rotate clockwise against the coil spring 53. When the memory card holding plate 23 rotates to a predetermined loading position, the hook portion 42 reaches below the hooked portion 51h and is locked to the hooked portion 51a, thereby moving the memory card holding plate 23 to the loading position. will be retained.

Further, a release button 54 is mounted on the upper surface of the substrate 35 at a position near the flap member 51. This release button 54 is inserted into a notch 55 formed in a part of the housing 1 as shown in Fig. M2 so that its upper surface almost coincides with the upper surface of the housing 11, and the lower surface thereof is provided with a cutout 55 formed in a part of the housing 1 as shown in FIG. As shown,
It has a rod-shaped support portion 54a that penetrates the substrate 35 and is vertically movable, and is normally urged upward by a coil spring 56. Note that the amount of upward movement of the release button 54 is limited by an E-ring 57 attached to the lower end of the rod-shaped support portion 54m. Also, the release button 55
A guide protrusion 54m is provided on the lower surface side of the board 35, and a cylindrical part 58 is provided on the base plate 35 to insert the guide protrusion 55 and guide it in the vertical direction. There is. The horizontal portion 51b of the hook member 51 is in contact with the lower end of the rod-shaped support portion 54th by a coil spring 53, and by pressing down the release button 55, the hook member 5 is rotated against the coil spring 53Vc. , the holding plate 23 is opened.

Further, a card insertion confirmation protrusion 58 is provided protruding from the end of the board 35 on the side of the flap member 5 . This protrusion 58
is for determining whether the memory card 12 is correctly inserted into the memory card holding plate 23.

In other words, when the card 12 is inserted correctly, the first
As shown in Figure 3, the memory card holding plate 23 can be rotated to a predetermined loading position, and if the card 12 is not inserted sufficiently, the memory card 12 will be placed on the top surface of the protrusion 58 as shown in Figure 14. Memory card holding plate 2
3 to the predetermined loading position becomes impossible.

Furthermore, a card insertion confirmation switch 59 is attached to the substantially central position of the board 35, as shown in FIG. This switch 59 is normally in an open state with an operating piece 59a facing upward. Therefore, memory card holding plate 2
3 is rotated to a predetermined loading position, this holding plate 2
As shown in FIG. 13, the memory card 12 held in the first
As shown in FIG. 4, when the memory card 12 is not inserted sufficiently and the holding plate 23 is not rotated to the predetermined loading position, the actuating piece 59a will not be pressed, and therefore the switch 59 will not be pressed.
is not closed. Further, when the memory card 12 is not inserted, the switch 59 will not close even if the holding plate 23 is rotated to a predetermined loading position. When this switch 59 is closed, the CPU 24 shown in FIG. 6 controls the memory card control circuit 30, determines that the memory card 12 is at a predetermined loading position, and lights up the card insertion confirmation lamp 34.

Next, the operation will be explained based on FIGS. 15 to 18.

When the memory card 12 is loaded into the memory card loading mechanism 15 and the power source (for example, a battery or a rechargeable battery) is turned on, a predetermined program stored in the ROM 27 causes the display section 16 to display a task as shown in FIG. A selection screen is displayed. Then, using the input bezel 19, the user specifies the job content using the numerical keys in the first character key group area 20 of the keyboard 14 and performs the desired job. Job duties include document creation, updating, erasing, copying, etc.

No matter which task is to be carried out, the contents of the memory card 12 are always read first as shown in FIG. 16, and an error message is displayed on the display section 16 for cards that do not meet the conditions.

Further, the memory card 12 has a password reset, and unless the input password matches the password of the memory card 12, the card cannot be used. However, if the memory card 12 does not have a password, a new password can be written.

Creation of document data is done in the first step. Second character key group area 20
．． This is performed using control data for giving instructions for creating the sentence 1, which is obtained by operating the keys 21 through the input button 19.

Here, document creation modes include a "local mode" in which document data is completed using only character data, and a "transfer mode" in which document data is completed by a mixture of character data and control data.

Character data mainly consists of 1. Second character key group area 2
Refers to various data consisting of characters that exist in 0.21,
Control data is data consisting of conversion symbols, right-justification symbols, and other control characters.

FIG. 17 shows an example of document data created in the "transfer mode". The meanings of the (S) control characters used here are as shown in the table below.

The document shown in FIG. 17 is not a document that can be used as is, but should be used as document data input to a document creator.

Therefore, after writing document data as shown in FIG. 17 into the memory card 12, taking out the memory card 12 and inputting the document data to the document creator using this as a medium directly or via a dedicated reader, the document The creator reads the document data, performs kanji conversion, layout settings, etc. according to the control characters in the document data, and can create a document as shown in FIG.

Therefore, according to the document data input device configured as described above, the structure of the mechanism, hardware, and software can be simplified by having the function of creating document data to be input into the document creator trap in the transfer mode. It is small in size, can be transferred, and is easy to carry. This device can compensate for the shortage in the number of document creators and can improve economic efficiency.

Furthermore, by using a microcomputer memory card as a storage medium, it is possible to obtain a small size and a huge storage capacity.

In addition, the memory card loading mechanism 15 includes a substrate 35 attached to the housing 1 made of synthetic resin, an elastic suppressing piece 50 that stably holds the memory card 12, and a card insertion confirmation that determines the insertion state of the memory card 12. a protrusion 58;
Since the stopper portion 38 that limits the opening degree of the memory card holding plate 23 is formed integrally with the substrate 35, the number of parts can be reduced and the configuration can be simplified.

Furthermore, since the memory card loading mechanism 15 is unitized, it can be easily incorporated into the housing 11.

Although the above embodiment has been described as a cantilever spring type contact mechanism, it is of course possible to use a globe type in which a spring is added in the vertical direction.

〔Effect of the invention〕

As described in detail above, according to the present invention, the memory card writing/reading device is provided to hold the memory card and to connect the contacts on the memory card side and the signal transmission circuit provided in the housing. Therefore, it is possible to provide a memory card loading mechanism with a simple configuration that allows for physical connection.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of the present invention, FIGS. 2 to 18 show an embodiment of the present invention, FIG. 2 is an external perspective view of a portable document data input device, and FIGS. Figure 4 is key i? 5 is a back view of the memory card, FIG. 6 is a block diagram showing the circuit configuration of the input device,
Fig. 7 is a perspective view of the memory card loading mechanism, Fig. 8 is an exploded perspective view of the same mechanism, Fig. 9 is a perspective view of the terminal unit, and Fig. 10 is a perspective view showing the vicinity of the terminal unit in the memory card loading mechanism. , FIG. 11 is an enlarged cross-sectional view of the X section in FIG. 10, FIG. 12 is a cross-sectional view showing the vicinity of the hook part and release button in the memory card loading mechanism, and FIGS. 13 and 14 are the memory card loading mechanism. A sectional view showing the vicinity of a card insertion confirmation switch in a card loading mechanism;
15 and 16 are flowcharts showing the operation, FIG. 17 is an example of document data created with the above input device, and FIG. 18 is an example of a document created with a document creator based on the document data of FIG. 6. be. 1.11... Integral, 2.35... Board, 3,12...
...Signal transmission circuit, 4,50...Elastic pressure piece, 5.5
8... Card insertion confirmation protrusion, 6, 23... Memory card holding plate, 7, 38... Stopper part, 8, 12
c---Contact, 9, 47a---Contact, 10.13
...Signal transmission circuit. Applicant's agent Patent attorney Takehiko Suzue Figure 6 Figure 1t 5S2! Figure 10! 2 Engraving 11 Figure λ Figure 17 Minoh 518

Claims (1)

[Claims] A synthetic resin board attached to the housing of the memory card writing/reading device, a memory card holding plate that is attached to this board so that it can be opened and closed and allows the memory card to be inserted and removed in the open state, and a memory card holding plate that is attached to the above board. a contact point for electrically connecting a contact point on the memory card side and a signal transmission circuit inside the housing when the memory card holding plate is closed; and a contact point formed integrally with the substrate and said memory card holding plate. an elastic suppressing piece that elastically presses the memory card to stably hold the memory card in the closed state; includes a card insertion confirmation protrusion that abuts the memory card and prevents the closing operation of the memory card holding plate, and four stop horns that are formed integrally with the board and limit the opening degree of the memory card holding plate. A memory card loading mechanism of a memory card writing/reading device.