JPH0638386Y2 - IC socket frame removal jig - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to an IC socket frame removing jig for removing an IC socket frame for an SO package.

[Prior Art] An IC socket for an SO package is composed of an IC socket body mounted on a printed circuit board and a frame that is detachably fitted to the IC socket body. The IC is mounted on the upper surface of the IC socket body. Then, place the connecting legs of the IC on the connecting terminals of the IC socket body, and by detachably fitting the frame to the outer periphery of the IC socket body, the connecting legs of the IC can be pressed by the lower surface of the peripheral edge of the frame, The connecting feet make elastic contact with the connecting terminals of the IC socket body with a spring structure for contact connection.

[Problems to be solved by the invention] To remove the conventional frame 3, as shown in FIG. 6, by holding the frame 3 from above with a jig 1 and sliding the frame 3 laterally as it is, the IC is removed. The engagement between the socket body 2 and the frame 3 is released.

As described above, in the related art, since the frame 3 is slid laterally by the jig 1, a space between the frame 3 and the lateral member 4 is required, and a force is also applied to the connection terminals of the IC socket body 2. Therefore, there is a problem that a peeling force is generated at the soldered portion of the connection terminal of the IC socket body 2.

The present invention has been provided in view of the above points, and it is possible to remove the frame without requiring an extra space, and to prevent the frame from being damaged and the jig fitting from being deformed due to excessive grip. It is intended to provide a jig for removing a frame of a socket.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the present invention is an IC mounted on an IC socket body and mounted on a connection terminal of the IC socket body.
A frame in which elastic connection pieces formed on the inner surface of the IC socket main body are detachably engaged with the engaging projections provided on the outer surface of the IC socket main body It is used when detaching, it is formed in a substantially U shape, the middle U-shaped portion has flexibility and the resin jig main body with both side grips is a grip, and the tip is a grip It consists of jig metal fittings embedded in both grips so as to project from the tip, and a fulcrum spring bridging between the jig metal fittings. When the frame dismounting jig disengages from the engaging protrusion of the IC socket body by bending the engaging piece of the frame outward by expanding the end of the jig fitting, Providing a pair of stoppers on the inner side surface near the base of both grips to prevent over-opening of the Along with the position of the fulcrum spring and the stopper, the height at the time of abutment is set to a height at which the engagement between the locking piece and the engaging projection can be released, and a pair for preventing overgrip is formed. The stopper is provided on the inner surface of the grip.

[Operation] Then, when both grips of the jig body are gripped and a gripping force is applied inward, the middle U-shaped portion bends inward and the tip of the jig metal fitting embedded in both grips is moved. It can be expanded, and as a result, the engaging piece of the frame is bent outward at the tip.
The engagement of the engagement protrusion of the IC socket body with the step can be released.

At this time, the over-opening prevention stopper can regulate the expansion of the grip portion and prevent the frame from being damaged due to over-opening of the jig fitting tip.

Further, even if a large gripping force is applied to the grip portion due to excessive grip, the jig fitting is prevented from being deformed due to the abutment of the stopper for preventing excessive gripping, which does not apply a large force to the jig fitting.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. Second
The figure shows a state in which the frame 3 is mounted on the IC socket body 2 for the SO package. The IC socket body 2 is mounted on the printed board by soldering the connection terminals 6 protruding outward to the pattern of the printed board. When the IC 5 is placed on the upper portion of the IC socket body 2, the connecting legs protruding outward are placed on the connection terminals 6 of the IC socket body 2. The connection terminal 6 of the IC socket body 2 is formed, for example, in a substantially U-shape or V-shape, one end of which is soldered to a printed circuit board and the other end of which has an IC
5 connecting legs 7 are placed. Then, by fitting the substantially mouth-shaped frame 3 on the outer periphery of the IC socket body 2, the lower surface of the frame 3 presses the connection foot of the IC5, and the pressing force causes the connection foot of the IC5 to connect the IC socket body. Make elastic contact with the other end of 2,
Got contact connection. Reference numeral 7 is a rib that forms a groove into which the connecting leg of the IC5 is inserted.

Here, the structure for engaging the IC socket body 2 and the frame 3 is as shown in FIG. That is, the engaging projections 8 are provided on both sides of the IC socket body 2, and the elastic engaging pieces 9 engaging with the step portion on the lower surface of the engaging projections 8 are provided on both sides of the frame 3 as shown in FIG. The two are integrally formed in the downward direction.

The engaging piece 9 has a claw portion which engages with the step portion of the engaging projection 8 at the tip
10 is formed as shown in FIG. Further, the frame 3 has a recess 11 that vertically penetrates the inner surface corresponding to the engaging piece 9.
Is formed.

Next, a frame removing jig of the present invention for removing the frame 3 from the IC socket body 2 will be described.

As shown in FIG. 1, the jig main body 12 is formed of a synthetic resin such as polyester elastomer into a substantially U-shape, and has a U-shaped portion 12a having flexibility in the middle portion. One piece is used as the grip 13. Jig metal fittings 14 made of stainless steel are embedded in the grip portions 13 on both sides by insert molding, and the jig metal fittings are provided between the front ends of the grip portions 13.
A fulcrum spring 15 made of stainless steel is bridged between the fourteen. The tip of the fulcrum spring 15 is insert-molded in the grip portion 13, but the length of the retaining member is set to a length that does not regulate the opening movement of the jig fitting 14.

As shown in FIG. 2, a tip portion of the jig metal fitting 14 projecting outward from the tip of the grip portion 13 has a notch 16 of a lower opening, and both sides of the notch 16 are formed into a frame. It is formed as a pressing piece 17 for pushing the engaging piece 9 of No. 3 to the outside. The pressing piece 17 is formed in a taper that spreads outward, so that the pressing piece 17 can be easily inserted into the guiding portion 8a shown in FIG. Pressing piece
The width dimension between 17 corresponds to the dimension between the engaging pieces 9 of the frame 3.

Further, a stopper 18 is provided so as to face the inner surface of the base of the grip portion 13 of the jig body 12. This stopper 18 regulates the opening amount of the tip of the jig metal fitting 14 by abutting, and the abutting surface of the stopper 18 is a bent tip of the upper end of the jig metal fitting 14 inserted into the grip portion 13. Is exposed, and the abutment between the tip surfaces surely plays a role as a stopper.

Further, a stopper 19 is provided so as to be opposed to the inner surface of the intermediate portion of the grip portion 13 between the fulcrum spring 15 and the stopper 18.
This stopper 19 is a stopper for preventing the jig fitting 13 inside from being deformed when the grip portion 13 is gripped by excessive pressure.

Then, as shown in FIG. 4, the jig body 12 is lowered from above the IC socket body 2, and the pressing piece 17 at the tip of the jig body 12 is pressed.
Is inserted into the recess 11 of the frame 3, and the taper of the pressing piece 17 is utilized to guide the engaging piece 9 of the frame 3 along the guide portion 8a on the upper surface of the engaging projection 8 as shown in FIG. Put the pressing piece 17 on the inner surface.

If the grip 13 of the jig body 12 is gripped in this state, the fulcrum spring 15
Since the deflection of the tip of the grip 13 is restricted by the
The U-shaped part 12a of 12 is bent as shown in FIG.
The pressing piece 21 at the tip of the jig metal fitting 14 protruding from 3 is opened to the outside, and the engaging piece 9 of the frame 3 is expanded to the outside. Engaging piece 9
When the claw portion 10 spreads outward, the engagement between the claw portion 10 at the tip and the engagement protrusion 8 of the IC socket body 2 is released.

At this time, even if the grip portion 13 is strongly gripped, the stopper 19 abuts against each other, so that the deflection of the grip portion 13 is restricted and the jig fitting 14 inside is prevented from being deformed. Further, since the stopper 18 abuts against each other, the expansion amount of the pressing piece 21 is restricted and the pressing piece 21 is not opened any more, so that the frame 3 can be prevented from being damaged.

In this state, the jig body 12 is grasped and slowly raised right above, so that the frame 3 can be detached from the IC socket body 2. Therefore, it suffices if there is a deflection amount for releasing the engagement of the engagement piece 9 of the frame 3 between the IC socket body 2 and a member such as a device on the side of the IC socket body 2.
The member 5 may be close to the socket body 2, and the components can be mounted at high density.

The height of the stopper 19 is the same as that of the locking piece 8 even at the time of collision.
It is set so that the engagement between the engagement protrusion 9 and the engagement protrusion 9 can be released.

[Effects of the Invention] As described above, the present invention provides a pair of stoppers for preventing the jig metal fitting tip from being excessively opened due to abutment on the inner side surfaces near the bases of both grips, and the position of the fulcrum spring and the stopper. A pair of stoppers for preventing excessive gripping formed on the inner side surface of the gripping portion are formed to have a height at the time of abutment with the engaging projection and the engaging projection can be released. Therefore, by simply grasping both grips of the jig body and applying a gripping force inward, the tip of the jig fitting can be expanded outward, and the tip of the jig bends the engaging piece of the frame outward. However, it is possible to release the engagement between the step of the engaging projection of the IC socket body, and it is possible to remove the frame directly above.As a result, the surrounding space for removing the frame is unnecessary. Mounting of components on printed circuit boards There is an effect that it is possible to increase the degree,
Moreover, the stopper to prevent over-opening prevents the grip from expanding and prevents damage to the frame due to over-opening of the jig metal fitting tip. There is an effect that the jig fitting can be prevented from being deformed without being applied to the jig fitting with a large force due to the collision of the stopper for preventing the excess.

[Brief description of drawings]

1 is a partially cutaway front view of a jig body according to an embodiment of the present invention, FIG. 2 is an enlarged perspective view with parts omitted showing the relationship between an IC socket and a jig metal fitting, which is used in the above, FIG. FIG. 4 is a sectional view of an essential part of the above IC socket, FIGS. 4 and 5 are explanatory views of the same as above, and FIG. Reference numeral 12 is a jig body, 12a is a U-shaped portion, 13 is a grip portion, 14 is a jig metal fitting, 15 is a fulcrum spring, and 18 and 19 are stoppers.

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A connecting leg of an IC mounted on a connection terminal of the IC socket body is elastically brought into contact with the IC socket body, and an engaging projection is provided on an outer surface of the IC socket body. The U-shaped portion of the middle portion is used for removing the frame in which the elastic engagement piece formed on the inner surface is detachably engaged from the IC socket body, and is formed in a substantially U-shape. Between the jig and the jig body made of resin, which has both sides with grip, and jigs embedded in both grips so that the tip protrudes from the tip of the grip. It is composed of a fulcrum spring that is bridged, and the tip of the grip part is expanded by pressing both grip parts inward, and the engaging piece of the frame is flexed outward by the tip of the jig fitting. In the frame removal jig that releases the engagement with the engagement protrusion of the main body, A pair of stoppers that prevent the tips from opening too far are provided on the inner side surfaces near the bases of both grips, and the height at the time of abutment between the position of the fulcrum spring and the stoppers is such that the engaging piece and the engaging projections. A frame detaching jig for an IC socket, characterized in that a pair of stoppers for preventing excessive gripping are provided on the inner side surface of the gripping portion, the pair of stoppers being formed at a height capable of releasing the engagement with.