JPH08234867A - Lock cancel and eject mechanism for extended unit of elctronic equipment - Google Patents

Abstract

PURPOSE: To enable the lock cancel of an extended unit and its eject from a frame by performing the operation of one action due to only one hand of an operator and to prevent any accident of damage from being generated by disabling the eject operation in the state of incomplete lock cancel. CONSTITUTION: When an eject lever 26 is moved and a plate 25 is slid to a bracket 24, first of all, a projecting part 27 of the plate pushes down a projecting part 13 of a latch 14. After a pawl 12 of the latch 14 is separated from a recessed part 19 of an extended unit 16, an end face part 28 of the plate 25 pushes a lever 23 and is continuously rotated to right with a shaft 29 as a center and a projecting part 21 of the lever pushes an end face part 18 of the extended unit 16 so that the extended unit 16 can be pulled out of a connector 17. At such a time, since the latch 14 is still pushed down by the projecting part 27 of the plate 25, the lock of the extended unit 16 due to the latch 14 keeps the canceled state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion unit for electronic equipment intended for replacement of a floppy disk pack, a TV tuner pack, a battery pack, a PCMCIA pack as standard equipment, etc. in order to expand the functions of a personal computer or the like. The present invention relates to a holding release and eject mechanism.

[0002]

2. Description of the Related Art Conventionally, when an extension unit of an electronic device is mounted in order to extend the functions of a personal computer, the extension unit is held and ejected for the purpose of holding and removing the extension unit and exchanging them. Is provided.

A conventional extension unit holding release and eject mechanism of an electronic device will be described with reference to FIGS. 3 and 4.

When the operator moves the slide lever 103 arranged outside the bottom surface of the frame 100 with the left hand,
Since the bracket 102 is connected to the slide lever 103, the bracket 1 is attached together with the slide lever 103.
02 also moves. At that time, the bracket 102 pushes the protrusion 109 of the latch 104. The latch 104 has a shaft 11
3 is rotated to the right, and the hook portion 112 of the latch 104 is rotated.
Is released from the concave portion of the extension unit 106, and the fixation of the extension unit 106 is released.

While maintaining this state, the operator uses his right hand to eject the eject lever 10 from the outside of the bottom surface of the frame 100.
When 1 is rotated counterclockwise about the shaft 110, the corner portion 111 of the eject lever 101 is located on the rear surface 1 of the extension unit 106.
By pushing 14, the extension unit 106 is pulled out from the connector 108 fixed to the printed circuit board 107 and taken out of the insertion / extraction opening 105 of the frame 100.

The following documents can be cited as documents in which other conventional techniques of this type are described.

(1) Japanese Patent Application Laid-Open No. 4-245315 (when the floppy disk drive unit and the auxiliary battery unit are made the same size and the former is not used,
A detachable exchange structure for the former and the latter of a portable computer that extends the battery life by loading the latter. (2) Japanese Unexamined Patent Publication No. 3-244013 (for portable use in which the hard disk drive and the battery are made the same size, and whether to use a larger capacity or a longer battery life is appropriately selected by attaching and detaching the both. Detachable and exchangeable structure for both computers.)

[0008]

As described above, the conventional extension unit holding / releasing and ejecting mechanism of an electronic device is such that the extension unit holding / releasing mechanism is connected to the extension unit and the connector (including the power supply terminal). Since the eject mechanism for releasing the extension unit and taking out the additional unit from the frame is completely separated, the operator has to operate the two levers with both hands, which is inconvenient. In addition, because the eject lever may be operated with the release lock of the extension unit incompletely unlocked, an excessive load is applied to the various components that make up the release release of the extension unit of the electronic device and the eject mechanism. There was a risk of additional damage.

Therefore, the present invention has improved the above-mentioned drawbacks of the prior art, and enables the unlocking of the extension unit and the ejection from the frame by the one-touch operation of only one hand of the operator, and the unlocking It aims to prevent the occurrence of damage accidents by making it impossible to perform the eject operation in an incomplete state.

[0010]

The present invention adopts the following means in order to solve the above problems.

(1) An extension unit having a chassis having a latch, a connecting portion for engaging the latch and a connector (including a power supply terminal), and capable of being inserted into and removed from the chassis, A bracket rotatably attached to a lever for extracting the extension unit from the chassis, and a plate which is slidably attached to the bracket and disengages the latch from an engaging portion of the extension unit and rotates the lever. And an ejecting mechanism for holding an extension unit of an electronic device, which is composed of an eject member for operating the plate.

(2) The extension unit holding release and eject mechanism of the electronic device according to (1), wherein the latch is made of plastic and has elasticity.

(3) The extension unit holding release and eject mechanism for an electronic device according to (2), wherein the protrusion provided on the plate presses the protrusion provided on the latch to elastically deform the latch.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, the holding release and eject mechanism of the extension unit of the electronic equipment is composed of a frame portion 10 and an eject portion 20. First, the frame portion 10
The expansion unit 16 is inserted into the chassis 11 through the insertion / removal opening 15. Expansion unit 1 inserted
6 is engaged with a connector 17 and is held by a plastic latch 14 which is attached to the chassis 11 at the same time as the connection and is made of plastic. The latch 14 can bend in the vertical direction in FIG. 1 due to the characteristic of plastic. The extension unit 16 has a concave portion 1 provided on its side surface.
The claw 12 of the latch 14 is inserted into 9 and held.

Next, the ejecting section 20 will be described. The lever 23 is attached to the bracket 24 so as to be rotatable about the shaft 29, and is biased in the counterclockwise direction by the coil spring 22. A plate 25 is held by the bracket 24 so that the plate 25 can slide, and an eject lever 26 is fitted to the plate 25.

In order to take out the expansion unit 16 from the serge 11, first, the expansion unit 1 by the latch 14 is used.
It is necessary to pull out the extension unit 16 from the connector while maintaining the state in which the holding of 6 is released. Then, when the eject lever 26 is moved and the plate 25 is slid with respect to the bracket 24, first, the convex portion 27 of the plate 25 starts to push down the convex portion 13 of the latch 14. On the other hand, the end surface portion 28 of the plate 25 is
Since 3 is pressed, the lever 23 starts rotating right about the shaft 29.

Further, when the plate 25 is slid,
When the latch 14 is gradually bent and the claw 12 of the latch 14 is disengaged from the recess 19 of the extension unit 16, the lever 23
The convex portion 21 of starts to push the end surface portion 18 of the extension unit 16. Then, the extension unit 16 begins to come off from the connector 17. At this time, since the latch 14 is still pushed down by the convex portion 27 of the plate 25, the latch 14
The holding of the add-on unit 16 by means of is maintained in the released state. Further, when the eject lever 26 is moved and the plate 25 is slid, the extension unit 16
Pull out from the connector 17.

When the eject lever 26 is returned to its original position after ejecting the expansion unit 16, the lever 23 is also returned to its original position by the tensile force of the coil spring 22.

[0020]

As is apparent from the above description, according to the present invention, the following effects can be obtained.

(1) Since it is possible to release the lock of the extension unit and eject it from the chassis by holding and releasing the extension unit and operating the eject mechanism with one touch of the operator's one hand only.

(2) Since the mechanism for disconnecting the extension unit and the connector after the extension unit is released is adopted, the eject member is not operated with the extension unit locked, so that it cannot be operated by mistake. No damage to parts.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an extension unit holding release and an eject mechanism of an electronic device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a perspective view of a conventional additional unit holding release and eject mechanism of an electronic device.

4 is a cross-sectional view taken along the line BB in FIG.

[Explanation of symbols]

 10 frame part 11 chassis 12 claw 13 convex part 14 latch 15 insertion / extraction port 16 extension unit 17 connector 18 end face part 19 concave part 20 eject part 21 convex part 22 coil spring 23 lever 24 bracket 25 plate 26 eject lever 27 convex part 28 end face part 29 axis

Claims (3)

[Claims] 1. An extension unit having a chassis having a latch, a connection portion for engaging the latch and a connector, and capable of being inserted into and removed from the chassis, and the extension unit is extracted from the chassis. A bracket on which a lever is rotatably attached, a plate which is slidably attached to the bracket, disengages the latch from an engaging portion of the extension unit, and rotates the lever, and an ejector for operating the plate. An extension unit holding release and eject mechanism for an electronic device, which is configured by a member. 2. The extension unit holding release and eject mechanism of an electronic device according to claim 1, wherein the latch is made of plastic and has elasticity. 3. The release unit holding release for an electronic device according to claim 2, wherein the protrusion provided on the plate presses the protrusion provided on the latch to elastically deform the latch. Eject mechanism.