JPS63100693A - Electronic device capable of loading and unloading external storage device - Google Patents

Abstract

PURPOSE:To obtain high durability by locking a cover with a torsion bar energized by a spring force. CONSTITUTION:The cover 2 is always energized in a direction to be opened by a spring 8 mounted to the shaft. In closing the cover 2 after a memory pack 4 is loaded, a torsion bar 11 always turned upward by the spring 8 is turned downward along the outer circumference of a lock part 2d and enters the inside of the lock part 2d by a reaction of the spring 8. Then the cover 2 is locked completely by the bar 11 and the lock part 2d and closed without a play by the reaction of the spring 8. When the bar 11 is moved to a position shown in dotted lines by a release lever, the engagement with the lock part 2d is released and the cover 2 is opened upward by the force of spring. Through the structure above, high durability and excellent operability in opening/closing the cover are obtained without a play between the cover and the main body.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to electronic equipment to which an external storage pack can be added.

[Prior Art] FIG. 1 is a perspective view showing an example of means for attaching an external storage pack (hereinafter referred to as a memory bag) to the main body of an electronic device such as a word processor. By opening the attached lid 2, the memory back insertion slot 3 is exposed, and by inserting the memory pack 4 into the device body through the insertion slot 3, the memory pack 4 and the main body are connected to the connector built in the main body. Electrical via means.

Indicates a mechanical connection.

Conventionally, when attaching the memory pack to the main body by such means, the cover 2 is attached to the main body so as to be rotatable around the 1th5 attached to the main body, as shown in FIG. For example, as shown in FIG. 2, the locking is achieved by engaging a protrusion 2a projecting inside the lid body with a hole 6a provided in a guide plate 6 fixed to the main body housing. On the other hand, when opening the lid 2, the lid 2 and the guide plate 6 are elastically deformed by hooking a finger or the like onto the hook portion 2b protruding from the outside of the lid 2 and pulling the lid upward. The engagement between the protrusion 2a of the body 2 and the hole 6a of the guide plate 6 is released to open the lid.

[Problems to be Solved by the Invention] However, according to the above method, even if the lid 2 and the guide plate 6 are elastically deformed, the protrusion 2a and the hole 6a strongly rub against each other, making it difficult to open and close the lid 2. As it turned over, the surroundings of the protrusion 2a and hole 6a were worn out, and it sometimes became impossible to lock it. Therefore, depending on the use of the memory pack 4, it may be required to be inserted and removed several thousand times, but the above method has the disadvantage that it cannot be used in such cases. Further, although the above method is good for closing the lid, it requires a considerable amount of force to open the lid 2, resulting in poor operability.

[Means for solving the problem] In order to solve this problem, the present invention provides a torsion bar rotatably attached to the housing case of an electronic device and a lid body, and closes the lid body. Sometimes, it has a locking part for fixing the lid by engaging with the torsion bar.

[Function] With this configuration, the device body can be unlocked by rotating the torsion bar, so that it can sufficiently withstand even opening and closing operations that are reversed.

[Embodiment] FIG. 2 is a plan view of a mounting mechanism section of a memory pack according to the present invention, and FIGS. 4(a) to 4(d) are sectional views of essential parts thereof. Here, 7 is the main body casing, and 2 is II! attached to the main body casing! The hinge part 2 is rotatable around 15.
The memory pack 4 is attached to the lid body 2 attached to the shaft via C.
It serves to cover the memory pack insertion slot after it is installed. The lid 2 is always biased in the opening direction by a spring 8 attached to the shaft. 9 is a connector mounted on the printed circuit board 10 of the main body, and the memory pack 4
When attached to the main body, the memory pack 4 and the main body are electrically and mechanically connected. The memory pack 4 is guided inside the main body by a space created by a guide part 7a provided integrally with the main body housing and a pack guide part 6 attached to the lower part of the guide part, and is guided from the insertion port to the connector. I am guided. 2
Reference numeral d denotes locking portions provided inside the lid 2, and a total of at least two locking portions are provided at both ends of the lid.

Reference numeral 11 denotes a bearing portion 6 provided integrally with the pack guide portion.
It is a torsion bar rotatably attached to b.
A force is always applied by the spring 12 to rotate upward. In the center of the torsion bar and the pack guide section, finger reliefs 11a and 6c are provided when the memory pack 4 is inserted and removed by grasping it with fingers.
Easy to insert and remove. A release lever 13 is slidably attached to the main body case, and is held between the main body case and the back guide plate, and when the head 13a protruding to the outside of the case is pushed down, the release lever releases the torsion bar. Said spring 1
Rotate downward against the force of 2. Reference numeral 13b denotes a spring portion provided integrally with the release lever 13, which eliminates looseness of the release lever 13 by constantly applying an upward lifting force to the release lever 13. 2e is a rib provided inside the lid 2 for detecting the mounting position of the memory bag.

In the above configuration, after the memory pack 4 is inserted,
When the lid body closes against the force of the spring 80,
The locking part 2d contacts the torsion bar 11, and as it closes further, the torsion bar 11 rotates downward along the outer periphery of the locking part 2d, and when the lid body 2 is completely closed, the locking part 2d It moves inward due to the reaction force of the spring 12. Here, the lid 2 is completely locked by the torsion bar 11 and the locking part 2d, and since force is always applied to the lid 2 in the opening direction due to the reaction force of the spring 8, the lid 2 is closed to the main body casing. It is possible to close the door without any play.

Next, in order to open the lid 2 and take out the memory pack 4, first push down the release lever 13, and the torsion bar 11 will be rotated downward in accordance with this operation, and the dotted line in FIG. 4(a) When the torsion bar 11 moves to the position shown, the engagement between the torsion bar 11 and the locking portion 2d is released, and the reaction force of the spring 8 causes the lid body 21 to move.
−, J: Opens toward the direction.

In addition, in the above mechanism, the ROM and R in the memory pack
If it is necessary to electrically detect the open/closed state of the lid before inserting/removing the memory pack as a protection mechanism for the AM, use the method shown in Figure 4 (d).
) The switch 14 is interlocked with the locking part of the lid body.
All you have to do is set it up.

In the embodiment shown in FIG. 4(d), the movable leaf contact 14 and the fixed contact 15 are screwed to the pack guide plate, and the movable leaf contact is opened/closed with the fixed contact by the locking part according to the opening/closing operation of the lid body 2. An example is shown below.

Here, if the lid 2 is made of a conductive material such as a zinc die-cast alloy, the torsion bar 11 is usually a round metal bar, so the lid 2 and the torsion bar 11 can constitute a switch. It can also be used as a switch for detecting the opening/closing state of the lid body 2 as described above, and in this case, there is an advantage that the structure is simpler and easier to assemble than the above-mentioned embodiment.

As is clear from the above explanation, according to the memory pack mounting mechanism according to the present invention, the locking part of the lid is locked to the torsion bar biased by a spring force, so that the lid Since there is no play between the lid and the main body, and the locking portion and the torsion bar do not rub against each other strongly, a highly durable mechanism can be obtained even if the lid is made of a material with low wear resistance such as plastic resin. Further, since the locking portions are provided at both ends of the lid, one end of the lid does not rise above the main body. In addition, since the release lever rotates the torsion bar to release the lock, it has excellent operability when opening the lid. It is possible to provide excellent characteristics such as:

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one example of a method for attaching a memory pack to an electronic device. FIG. 2 is a plan view of the mounting mechanism section of the memory pack according to the present invention. FIG. 3(a) is a cross-sectional view taken along line AA in FIG. 2. FIG. 3(b) is a cross-sectional view taken along line BB in FIG. 2. FIG. 3(C) is a cross-sectional view taken along line CC in FIG. 2. FIG. 3(d) is a cross-sectional view taken along line A-A in FIG. 2 according to another embodiment. FIG. 4 is a diagram showing a conventional example.

Claims (1)

[Claims] An electronic device that has a removable external storage device that is electrically and mechanically connected to the electronic device by a connector means provided on the electronic device, and is rotatably attached to the housing case of the electronic device. a torsion bar, a lid body rotatably attached to the housing case about a shaft fixed to the housing case of the electronic device, and at least two locking portions for the torsion bars on the lid body. An electronic device having a removable external storage device.