JPH0361230B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an electronic device to which a memory pack can be removably attached.

[Prior Art] Recent technological advances in LSIs and the like have been remarkable, and the progress and versatility of electronic devices using them has also been remarkable. These electronic devices increasingly require large-capacity storage elements such as ROM and RAM.
Various types of external memory have been proposed and implemented because the storage capacity of LSIs obtained with current technology is insufficient to cover the internal memory, and because of the necessity of using electronic devices. The main ones include floppy disks and memory packs. These medium memory packs are relatively small and are mainly applied to general electronic equipment, and are increasingly contributing to the expansion of the functions of these electronic equipment, and their applications are expanding.

FIGS. 1A and 1B and FIG. 2 show two types of conventional electronic devices in which memory packs are removably installed.
The structures of memory packs currently in use and their connection structures to electronic devices basically fall into one of these two types. Each of these conventional examples will be briefly explained according to the drawings.

In Figures 1a and b, 1 is the electronic device main body, 1
Reference numeral A designates a memory pack mounting portion provided on the bottom surface of the electronic device body 1, 2 a printed wiring board exposed to the memory pack mounting portion 1A, and 2A a connector contact provided on the printed wiring board 2. Also,
3 is memory pack, 3-1 is memory pack 3
printed wiring board, 3-2 is connector contact 2A
4 is the memory pack 3
This is the presser foot lid. In this conventional example, the memory pack 3 is placed in the mounting portion 1A, and the contact pattern 3-2 of the memory pack 3 is pressed against the connector contact 2A.
Furthermore, the memory pack holding lid 4 is hooked onto the exterior of the electronic device body to hold down the memory pack 3 and ensure contact between the connector contact 2A and the contact pattern 3-2.

However, in the electronic device shown in FIG. 1, the memory pack 3 has a relatively large area and cannot be disposed on the top plane of the electronic device, so it is disposed on the bottom surface of the electronic device. Therefore, the electronic device had to be turned upside down when being attached or detached, resulting in poor operability. In addition, the connector contact 2A is usually 150 yen per piece.
This type of memory pack usually has more than 30 contacts, so a total pressing force of 5 to 6 kg is required. Therefore, this pressing force of 5 to 6 kg will act between the presser cover 4 and the exterior of the electronic device main body 1, resulting in deformation of the presser cover 4 and the exterior, making it impossible to maintain a constant contact pressure and causing contact failure. There was a serious flaw that caused this.

Next, the memory pack and its connection structure shown in FIG. 2 solve the above-mentioned problems of the structure shown in FIG. The electronic device 1' is provided with an insertion hole 1A' into which a memory pack 3' is vertically inserted. A connector 5 having connector contacts 5-1 is provided on the printed wiring board 2', and the printed wiring board 3'-1 of the memory pack 3' inserted through the insertion hole 1A' is press-fitted into the connector 5 as shown in the figure. By doing so, electrical contact between the contact pattern 3'-2 of the substrate 3'-1 and the connector contact 5-1 is obtained. In this structure, since the memory pack 3 can be installed vertically, it does not require a large area, and can therefore be placed on the upper surface of the electronic device main body 1'. Further, since the contact between the connector contact 5-1 and the contact pattern 3'-2 is made only by the connector 5, no contact pressure is applied to the exterior as shown in FIG. Therefore, contact pressure will not be maintained due to deformation of the exterior.

However, in the structure shown in FIG. 2, since the printed wiring board 3'-1 is directly attached to and removed from the connector, the printed wiring board 3'-1 and the contact pattern 3'-
2 is constantly rubbed and worn, and the durability of the contact portion is poor, resulting in another disadvantage of lowering reliability.

Further, in both conventional electronic devices shown in FIGS. 1 and 2, the memory packs are manually attached and detached, which has the disadvantage of poor operability.

[Purpose] The present invention has been made in view of the conventional problems as described above, and its purpose is to provide a reliable electrical and mechanical connection of memory packs and to facilitate attachment and detachment of memory packs. Our goal is to propose electronic devices with excellent operability.

[Example] Hereinafter, the present invention will be described in detail using drawings showing a preferred example.

FIG. 3 is a schematic external view of an electronic device according to an embodiment of the present invention, in which a is a plan view and b is a side view. Fourth
The figure is a block diagram showing the functions of an electronic device according to an embodiment, FIG. 5 is a schematic plan view of a connector device provided in an electronic device according to an embodiment, and FIG.
The XX cross-sectional view in the figure, and FIGS. 7a and 7b are partial cross-sectional views of FIG. 6, respectively showing the operation process.

In Figures 3 and 4, 11 is the main body of the electronic device, 12 is the operation keyboard of the electronic device, and 12-1
13 is a memory pack config key of a connector device according to an embodiment; 13-
1 is the ROM and RAM built into the memory pack
14 is a printed paper on which output is printed when the electronic device has a printing means such as a printer. Further, 15 is a CPU (central processing unit) having a ROM storing a control program, 16 is a RAM built in the electronic device, 17 is a ROM built in the electronic device, 18 is a drive control circuit for the connector device, and 19 is the connector device. .

The connector device 19 is disposed inside the electronic device body 1, and a memory pack attachment/detachment opening 11A is opened in the upper exterior of the electronic device body 11, and the memory pack 13 is attached/detachd in the direction of arrow A. In the connector device 19, the memory pack 13 is attached by the user inserting it into the attachment/detachment opening 11A of the main body of the electronic device.

Furthermore, when the memory pack 13 is to be taken out from the main body 1 of the electronic device, it can be taken out automatically by pressing the memory pack eject key 12-1 on the keyboard 12. The operation of the connector device 19 at this time is achieved by controlling the drive control circuit 18 of the connector device 19 according to a control program within the CPU 15.

The connector device included in the electronic device according to this embodiment will be described in detail below. Fifth
, 6 and 7, 13-2 is a memory 13-2 such as ROM, RAM, etc. in the memory pack.
1 is the printed wiring board of the memory pack 13 mounted on it, and 13-3 is the printed wiring board 13.
This is a contact pattern exposed from the exterior of the merry pack 13 disposed on -2. 19-1 is the connector body, 19-A is the operating lever of the connector contact,
19-B is a movable arm 19-C of the operating lever 19-A.
19-D is the fulcrum for rotation of the contact operation bar 19-A, 19-E is the connector contact, and 19-F is the insertion portion 19 of the memory pack 13.
An elevating member 19-H provided below -G is a hook portion of an operating lever 19-A with which the tip of a connector contact 19-E engages. Here, the connector contact 19-E has a spring force that tends to bend in the direction of the insertion portion 19-G, and the operating lever 19-A is always moved toward the insertion portion by the spring force of the connector contact 19-E. It is biased towards the 19-G side. Lifting member 19-
As shown in the figure, a leaf spring 19-I is provided at the bottom of F for pushing up the elevating member 19-F.
The movable arm 19-C is connected to the operating lever 1 as shown in FIG.
Two shafts extend from 9-A, and the cam driven shaft 19-B
is rotatably attached between two movable arms 19-C. Further, it goes without saying that the insertion portion 19-G is located opposite to the attachment/detachment opening 11A of the electronic device main body 1.

19-2 is a movable arm 19-C and a cam driven shaft 19-
A spiral cam rotatably supported by a shaft 19-3 on a frame 19-6 in B, 19-4 is a cam 19
19-5 is a gear train that decelerates the rotation of the motor and transmits it to the cam 19-2; 19-7 is a motor; 19-8 and 19-9 are one cycle completion detection contacts.

5 and 6 show a state in which the memory pack 13 is attached to the connector device 19, the connector contact 9-E is brought into contact with the contact pattern 13-3 of the memory pack 13, and the CPU 15 is operated by operating the operation keyboard 12. The electronic equipment body 1 under the control of
The upper part of the memory 13-1 is transferred to the built-in RAM 1, or the contents of the main body built-in RAM 16 and ROM 17 are written to the RM of the memory pack 13.

The operation when removing the memory pack 13 from the connector device 19 will be explained. When the memory controller key 12-1 on the keyboard 2 is pressed, a signal is input to the drive control circuit 18 of the connector device 19 under control according to the control program in the CPU 15, causing the motor 19-7 to rotate. This rotation is decelerated by the gear train 19-5, and the torque is increased and transmitted to the cam 19-2.
rotates at a predetermined number of rotations. When the cam 19-2 rotates, the cam driven shaft 19-1B, which is supported by the operating lever 19-A, moves in the direction of arrow B on the cam surface of the cam 19-2.
The operating lever 19-A is pushed up toward the rotational fulcrum 1 against the spring force of the connector contact 19-E.
Rotates around 9-D. On the other hand, the other end of the connector contact is engaged with the hook 19-H of the operating lever 19-A, and the connector operating lever 1
As 9-A rotates, it is pulled away from the contact pattern 13-3 of the memory pack 13. As this state progresses further, the elevating member 19, which is being pushed upward by the leaf spring 19-,
-F is disengaged from the operating lever 19-A (at that point, the connector contact 9-E is positioned sufficiently away from the memory pack 3), the elevating member 19-F is moved by the leaf spring 19-I. As a result, the memory pack 13 is raised in the direction of arrow C and pushed up.

At that time, the operating lever 19-A and the elevating member 19-
Since F is engaged as shown in FIG. 7a, the operating lever 19-A is connected to the cam driven shaft 1 as shown in FIG. 7b.
Even if 9-B is removed from the cam surface of cam 19-2, the state shown in FIG. 7 is maintained despite the action of the spring force of connector contact 19-E. At this time, the one-cycle detection cam 19-4 pivotally supported by the shaft 19-3 of the cam 19-2 rotates and the detection contact 19-
9 is brought into contact with the detection contact 19-8, a signal indicating the end of one cycle is input to the drive control circuit 18, the power to the motor 19-7 is cut off, and one cycle of operation is completed. The state shown in FIG. 7b shows a standby state for mounting the memory pack, and at this time, the connector contact 19-E is located away from the memory pack insertion portion 19-G as shown.

When installing the memory pack 13, insert the memory pack B into the insertion part 19-G, and move the lifting member 19-F with the leaf spring 1 at the bottom of the memory pack 13.
When pushed down against the force of 9-I, the elevating member 19
-F and the operating lever 19-A are no longer locked, and the operating lever 19-A is rotated in the direction opposite to the arrow B by the spring force of the connector contact 19-E. The connector contact 19-E advances in the direction of the insertion portion 19-G, that is, in the direction of contacting the contact pattern 13-3 of the memory pack 13, and finally reaches the state shown in FIG. As a result, the memory pack 13 is mounted in a predetermined position, and at the same time, the connector contacts 19-E are pressed against the contact pattern 13-3 of the memory pack 13 with a constant contact pressure.

What is important here is that before memory pack 13 is inserted, connector contact 19-E is connected to memory pack 13.
The connector contact 19-E is located away from the insertion part 19-G of the memory pack 13, and does not touch any part of the memory pack 13 during the insertion process of the memory card 13, and the connector contact 19-E connects to the memory pack 1 almost immediately after the insertion is completed.
The timing and mechanism for entering the third side and press-welding are arranged. With this configuration, the drawbacks of the conventional example shown in FIG. 2 are solved. Further, in the connector device, all of the pressure contact force of the connector contact 19-E is processed inside the connector body 19-1, so the drawbacks of the conventional example shown in FIG. 1 are naturally solved.

Since the electronic device according to this embodiment is configured and operates as described above, it is possible to connect a memory pack with high reliability, and also to easily remove the memory pack by pressing the memory pack eject key. Good sex.

[Effects] As described above, according to the present invention, there is provided an electronic device with extremely excellent operability in which a memory pack can be connected with high reliability and the memory pack can be easily removed by pressing the eject key. Ru.

[Brief explanation of drawings]

Fig. 1a is a perspective view and a partial plan view of a conventional example of an electronic device to which a memory pack is installed, Fig. 1b is a plan view of the memory pack, and Fig. 2 is a diagram of another electronic device to which a memory pack is installed. A partial sectional view of a conventional example, FIGS. 3a and 3b are respectively a plan view and a side view of an electronic device equipped with a connector device according to an embodiment of the present invention, and FIG. 4 is a function of the electronic device shown in FIG. 3. 5 is a schematic plan view of a connector device according to an embodiment of the present invention, FIG. 6 is a sectional view taken along line XX in FIG. 5, and FIGS. 7a and 7b illustrate the operation of the connector device, respectively. It is a partial sectional view explaining. Here, 11...Electronic device body, 12...Keyboard, 12-1...Memory pack igijiku key, 13...Memory pack, 19...Connector device, 19-A...Operation lever, 19-E... …
Connector contact, 19-2...Cam, 19-7...
It's a motor.

Claims (1)

[Claims] 1. An insertion portion into which a memory pack is inserted, a connector contact that contacts a contact of the memory pack, and a rotatably supported operating lever, the operation of bringing the connector contact into contact with and separating from the contact of the memory pack. A connector device comprising a lever, a cam that rotates the operating lever, an elevating member that pushes up the memory pack in conjunction with the rotation of the operating lever, and a motor that rotates the cam,
An electronic device further comprising: a drive control means for controlling the rotation of the motor; and a memory pack igiect key for inputting a signal for the rotation of the motor to the drive control means.