JPH08293683A - Device for holding extended board - Google Patents

Abstract

PURPOSE: To insert and pull extended boards out by such a simple operation that arms are drawn forward to contact a projecting part with a releasing part and a joint claw is released from connection with a joint part by elastically deforming the arms to the inside, when the extended boards are pulled out from a main board. CONSTITUTION: A rectangular insert hole 1b is provided at an attachment part 1a of a main unit 1 and a main board 2 is arranged inside the insert hole 1b. A connector 2a is provided on a terminal upper surface facing the insert hole 1b on the main board 2, and is connected with a connector 3c of an extended board 3. A connector 3b is provided at the other terminal of the extended board 3. A supporting body 6 for the extended board 3 is formed in a U shape, a guide slot 6c is defined by an upper rail 6a and a lower one 6b horizontally projected from both inner sides of the holder, and a joint part 6d is provided at the center of the upper rail 6a. A notch 6e for inserting connectors is provided at the rear.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holding device for an extension board in information equipment.

[0002]

2. Description of the Related Art In an information device such as a word processor or a personal computer, an expansion board may be connected to a main board provided in a main body to expand the function. As shown in FIG. 7, the extension board 3 is provided with connectors 7 and 8 on both sides, and the connector 7 on one side is inserted and fitted into the connector 6 provided on the main board 1 by pin coupling, while on the other end. On the provided connector,
The extension board 3 is removed from the main board 1 by inserting and fitting the connector 8 attached to the cable 9 connected to another machine by pin connection and pulling the handle 5 toward you. However, when the cable 9 is to be removed from the extension board 3, the extension board 3 is held on the main board 1 only by the pin coupling of the connectors 6 and 7, so that the connector 8 of the cable 9 does not come off and the extension is performed. There may be a problem that the substrate 3 is dropped from the main substrate 1.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and when a pulling force is applied to a cable in an attempt to remove the connector of the cable from the extension board, the extension board is used in a simple procedure. It is intended to provide a holding device for an extension board that can be inserted and removed.

[0004]

In order to solve the above problems, the present invention provides a main board having an insertion opening provided in a main body and a connector provided in the main body facing the insertion opening, Corresponding to the connector of the main board, which is provided with guide grooves formed by upper rails and lower rails in the front-rear direction on opposite side surfaces opposite to each other, and has locking portions formed on the upper rails and attached to the rear surface of the insertion slot. And an extension board guided by the guide groove, one end of which is fixed to both sides of the upper surface of the extension board and the other end of which is elastically deformable inward, and which corresponds to the locking portion of the holding body on the outside. Locking pawls and a pair of arms having a convex portion above them, and a release portion corresponding to the convex portions at the front end of the upper rail of the holding body, and the arms when the extension board is removed from the main board. By pulling it forward so that the protrusion contacts the release part. Elastically deforming the same arm inwardly,
It is characterized in that the locking of the locking claw with respect to the locking portion is released. Also, an inclined surface is formed at the front end of the convex portion. Further, the arm is composed of a mounting piece and a lever, and the lever is supported slidably in the front-rear direction with respect to the mounting piece. Furthermore, the convex portion is formed integrally with the lever. Further, the release portion is formed continuously on the upper rail.

[0005]

With the above construction, in the board holding device according to the present invention, when the cable connector is to be pulled out from the expansion board, the expansion board holds the locking claws provided on the board holder. It is possible to prevent the problem of being accidentally disengaged by being engaged with the extension board, and when the extension board is to be removed from the main board, pull the arm forward to bring the convex portion into contact with the release portion. The arm elastically deforms inward to release the engagement of the engagement claw with the engagement portion, and the expansion board can be easily removed.

[0006]

Embodiments of the present invention will be described in detail below with reference to the drawings. The same reference numerals as those in the conventional example are used in the figure. FIG. 1 is a view showing an information device 1 such as a word processor and a personal computer. The information device 1 is provided with an insertion opening 1b of an expansion board 3 on a rear portion or a side surface 1a of a main body, and a cable 9 is inserted into the insertion opening 1b. Then, the extension board 3 connected to another information device is inserted.

As shown in FIG. 2, the extension board 3 is a connector 3
Substrate 3a, on which b and 3c are arranged, is screwed and fixed to arm 4 to form one structure. The U-shaped arm 4 made of synthetic resin is provided with bosses 4a on both inner sides thereof, and the boss 4a is provided with a screw hole 4b. Triangular locking claws 4c and convex portions 4d are provided on both outer sides, and a lever 5 is formed by bending a U-shaped tip in a stepped shape. The substrate 3a is fixed below the arm 4,
It is fixed to the arm 4 by inserting a screw into a screw insertion hole provided in the substrate 3a and screwing the screw into the screw hole 4b of the arm 4.

Further, as shown in FIG. 1, the mounting portion 1a of the device body 1 is provided with a rectangular insertion hole 1b,
The main board 2 is disposed inside the insertion hole 1b. A connector 2a is provided on the upper surface of one end of the main board 2 facing the insertion hole 1b, and the connector 3a of the extension board 3 is connected to the connector 2a. A connector 3b is arranged at the other end of the extension board 3, and the connector 3b is provided.
A cable 9 is connected to.

Further, as shown in FIG. 3, the holding body 6 of the extension board 3 mounted in the apparatus body 1 is formed in a U shape, and an upper rail 6a and a lower rail 6b are provided on both inner sides thereof in the front-rear direction. The guide groove 6c is formed so as to project, and the engaging portion 6d is provided at the center of the upper rail 6a. Further, the rear portion is provided with a notch 6e for inserting a connector. As shown in FIG. 4, the holding body 6 is attached to the attachment hole 1b of the main body 1 by fixing both U-shaped tip portions.

Next, the assembly of the holding device for the expansion board having the above construction will be described. The board portion 3a of the extension board 3
Both sides are inserted into the guide groove 6c of the holding body 6, and the extension board 3 is inserted into the holding body 6. The substrate part 3
The connector 3c of a is the connector 2a on the main board 2.
On the other hand, the extension claw 4c of the arm 4 is engaged with the engagement portion 6d of the holding body 6 so that the extension board 3 is fixed.

The extension board 3 is fixed to the holder 6 by a locking claw 4
By locking and fixing with c, it is possible to prevent the extension board 3 from being accidentally pulled out from the main board 2 even if the cable 9 connected to the extension board 3 is indexed. When the extension board 3 is to be removed from the main board 2, the lever 5 is pulled toward the front so that the convex portion 4d abuts the release portion 6f of the upper rail 6d as shown in FIG. By bending the lever 5 inwardly, the locking claw 4c is disengaged from the locking portion 6d of the holder 6 and can be removed from the main board 2.

FIG. 5 shows another embodiment of the extension board holding device according to the present invention, in which the arm 4 is formed in a U shape.
It is composed of a triangular locking claw 4c on both outer sides, a holding piece 4h provided with a convex portion 4d above the locking claw 4c and an L-shaped 4g at the tip, and a lever 5. The convex portion 4d is fitted in the groove 4g, whereby the lever 5 is attached so as to be horizontally slidable along the holding piece 4h in the directions of arrows a and b. When the extension board 3 is held by the holding body 6 with the above configuration, the lever 5 is slid in the direction of the arrow a, whereby the lever 5 is housed in the holding body 6 of the extension board 3,
This prevents the lever 5 from protruding outside the body 1. When the extension board 3 is removed from the main board 2, the lever 5 is slid to the side of the arrow b and pulled out to the outside of the holding body 6, whereby the convex portion 4d is pulled out.
If the lever 5 of the arm 4 is bent inward so that the locking claw 4c can be disengaged from the locking portion 6d of the holder 6, it is more easily expanded from the main board 2. Board 3
Can be removed.

The release portion 6f in FIG. 3 is formed continuously on the upper rail 6a, but as shown in FIG. 6, it is formed above the front end of the upper rail 6a and separately from the upper rail 6a. You may do it.

[0014]

As described above, in the extension board holding device according to the present invention, even when the cable is indexed to remove the cable connector connected to the board, the board is held by the holder and the holder fixing tool. It is fixed, and it is possible to prevent the same substrate from being accidentally removed from the main substrate, and reliability is improved. When the board is to be removed, the lever is pulled forward and the lever is bent to disengage the locking claw provided on the holder from the holder.
The substrate can be removed and the extended substrate holding device can be used with improved usability.

[Brief description of drawings]

FIG. 1 is a schematic view showing how an extension board holding device according to the present invention is attached to an information device.

FIG. 2 is a top view showing a holding device for an extension board according to the present invention.

FIG. 3 is a perspective view showing a holding body of a holding device for an extension board according to the present invention.

FIG. 4 is a top view showing the attachment of the extension board holding device to the main board according to the present invention.

FIG. 5 is a perspective view showing another embodiment of the arm portion of the extension substrate holding device according to the present invention.

FIG. 6 is a perspective view showing another embodiment of the releasing portion of the extension board holding device according to the present invention.

FIG. 7 is an exploded perspective view of a conventional extension board holding device.

[Explanation of symbols]

 1 Main Body 1a Rear or Side 1b Insertion Port 2 Main Board 3 Expansion Board 3a Board Part 3b Connector 3c Connector 4 Arm 4a Boss 4b Screw Hole 4c Locking Claw 4d Convex 5 Lever 6 Retainer 6a Upper Rail 6b Lower Rail 6c Guide Groove 6d Locking part 6e Notch 9 Cable

Claims (5)

[Claims] 1. A guide provided by an upper rail and a lower rail in the front-rear direction on both side surfaces of an insertion opening provided in a main body and facing a main board having a connector provided in the main body facing the insertion opening. An extension board and a same extension board which are provided with a groove, a retaining member formed on a rail and attached to the rear surface of the insertion opening, and a connector corresponding to the connector of the main board, and which are guided in the guide groove. One end is fixed to both sides of the upper surface, the other end is elastically deformable inward, and a pair of arms having a locking claw corresponding to the locking part of the holding body on the outside and a convex part above the locking claw and the holding And a releasing portion corresponding to the protruding portion provided above the front end of the upper rail of the body, and pulling the arm forward when the expansion board is removed from the main board causes the protruding portion to be the releasing portion. Abut, elastically deform the arm inward, An extension board holding device, wherein the locking claw is unlocked from the locking part. 2. The extension board holding device according to claim 1, wherein an inclined surface is formed at a front end of the convex portion. 3. The extension board holding device according to claim 1, wherein the arm includes a mounting piece and a lever, and the lever is supported slidably in the front-rear direction with respect to the mounting piece. . 4. The extension board holding device according to claim 2, wherein the convex portion is formed integrally with the lever. 5. The extension board holding device according to claim 1, wherein the release portion is continuously formed on the upper rail.