JPH0737352Y2 - Housing extraction tool - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for extracting a housing mounted on a connector board for a printed circuit board.

[0002]

2. Description of the Related Art As is well known, a printed circuit board connector board a and a housing b mounted on the printed circuit board connector board a have a printed board connector board a as shown in FIGS.
On the other hand, a pair of spring-retaining locking pieces e, e provided with locking holes f on the outer ends of the housing b are provided on both ends of the housing b in the length direction of the housing b. They are arranged side by side, and the locking pieces e, e are mounted by so-called patching, which locks the fittings c by pushing them into the engaging holes d against the spring property.

Conventionally, since there is no tool for pulling out the housing b from the printed board connector board a, the existing tweezers (not shown) or the like is used as a substitute.

[0004]

However, the tweezers and the like are not dedicated tools for pulling out the housing, and FIG.
As shown in FIG. 2, a pair of locking claws e, e of both housings b, which are mounted vertically adjacent to the printed board connector board a, are closely locked to the mounting bracket c, The distance g between the two locking claws e, e is actually about 2 to 3
Since it is very narrow at about mm, it is difficult to pull out with tweezers and the workability is poor, and it is impossible to easily pull out the housing, which is very troublesome.
In addition, commercially available metallic tweezers are inconvenient because they are short-circuited.

The present invention has been made in view of the above problems of the prior art, and provides a dedicated housing pulling tool that allows the housing to be pulled out easily and easily by one-touch operation. The purpose is to do.

[0006]

In order to achieve the above object, a housing extraction tool of the present invention is made of an insulating material having a spring property, and has a narrow width in which a locking claw pressing portion of a housing is provided in a protruding manner inside a tip end thereof. A pair of actuating plates, each of which has a holding piece extended at its tip, are connected at the rear end of the widening so that both holding pieces can be opened and closed side by side with a fixed interval, and ribs or the like are provided near the tips of the two working plates. The feature is that a reinforcing portion is formed.

[0007]

The pair of holding pieces at the tip of the tool are inserted into the outer sides of the pair of locking claws of the housing which are fitted and locked in the engaging holes of the mounting bracket in the connector board for the printed circuit board, and the tips thereof are inserted. Abut the mounting bracket.

In the above-mentioned state, when the substantially central portions of both actuating plates are pressed inward, the actuating plates bend inward against the springiness of the actuating plates themselves, so that the inner ends of the two holding pieces are clamped. The pressing part abuts on the outside of both the locking claws toward the locking part. Further, when both actuating plates are pressed and curved, the pair of locking claws are curved inwardly facing each other by the pressing portions of the both holding pieces.

Therefore, after the both locking pieces are curved until the locking portions at the tips are disengaged from the edges of the engaging holes of the fitting, the pair of engaging pieces are pulled out from the engaging holes of the fitting by pulling out. Can be pulled out.

When a pair of actuating plates are pressed and bent inward from both sides, a slip stopper is provided at the portion pressed by the fingertips outside the actuating plates, so that the slipping of the fingertips is prevented. As a result, the pressing operation becomes easier, and a sufficient pressing force can be surely applied.

Further, when both actuating plates are pressed from both sides, the pressed portions are not bent by the reinforcing portions provided near the tips of the both actuating plates. Pressing force can be applied. Therefore, a large force can be applied to the pair of locking claws of the housing,
The elastic deformation and pinching are ensured, and the housing can be easily pulled out.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the tool of the present invention, FIG. 2 is a plan view of the housing in a partially pulled-out state, and FIG. 3 is a side view of the housing in a partially-broken state.

As shown in FIGS. 1 and 2, the tool 1 has a pair of two operating plates 2 which are formed in a plate shape and are long in the uniaxial direction (front-back direction) by an insulating material having elasticity such as plastic. It is composed of 2.

The pair of actuating plates 2 and 2 have, on the inner side of the tips thereof, narrow-width holding pieces 5 and 5 in which the pressing portions 6 and 6 of the pair of locking claws 4 and 4 of the housing 3 are provided so as to face each other. Are integrally formed with each other, and reinforcing portions 7, 7 are provided on the inner surface of the portion that presses the actuating plates 2, 2 in a substantially central portion from the bases of the holding pieces 5, 5, and Nonslip 8, 8 is provided on the outer surface of the portion provided on the parts 7, 7.

The actuating plates 2 and 2 are relatively thin so that the vicinity of their rear ends can be bent against their own elasticity and can be restored to their original shape by the elasticity.
The thick portion 1 is formed at the rear end and protrudes inward at the rear end.
It is formed in 0 and 10.

The actuating plates 2 and 2 are butted against each other at their thickened portions 10 and 10 at the rear ends thereof, fixed with set screws 11 and 11 and arranged in parallel at a constant interval A, thereby making the tool concerned. 1 is configured.

The pair of holding pieces 5 and 5 described above are curved by the pressing portions 6 and 6 at their ends so that the locking claws 4 and 4 of the housing 3 face inward as shown by the chain double-dashed line in FIG. It is formed with an appropriate thickness so as not to bend when it is bent.

Further, the distance A between the pair of holding pieces 5 and 5 is such that when the locking claws 4 and 4 of the housing 3 are pressed and curved, both actuating plates 2 and 2 are pressed and deformed inward, as shown in FIG. Although it becomes smaller as indicated by A ', before the housing 3 reaches the withdrawable interval A', the two holding pieces 5 and 5 are set so as not to come into contact with the outer side surfaces of the locking claws 4 and 4. It is set to be appropriately larger than the dimension B between the outer sides of both the locking claws 4 and 4, so that the large pressing force of the locking claws 4 and 4 is applied to the pressing portions 6 and 6 of the two holding pieces 5 and 5. Deformation force is applied.

Further, the distance C between the pressing portions 6, 6 at the tips of both the holding pieces 5, 5 is set to be larger than the dimension B between the outer sides of the both locking claws 4, 4 and both of them. The lateral width D of the holding pieces 5, 5 and the pressing portions 6, 6 is set to be substantially the same as the height (thickness) E of the locking claws 4, 4 as shown in FIG. As shown in FIG. 3, mounting brackets 13, 13 fixed to the connector board 12 for the printed circuit board.
.. Housings 3 and 3 having locking claws 4 and 4 at their ends
Even if they are mounted in an adjacent state with a small space therebetween, that is, a space F of about 2 mm or 3 mm, the locking claws of one housing 3 do not interfere with the locking claws 4 of the other housing 3. Only 4 can be deformed by pressing.

The above-mentioned reinforcing portions 7 and 7 are formed by projecting a rig 7a on the inner side of the operating plates 2 and 2, but in addition, they are provided thicker than other portions (not shown). It is also possible to form.

In the illustrated example, the slip stoppers 8 and 8 are provided with a plurality of ridges extending at right angles to the lengthwise direction of the actuating plates 2 and 2 at regular intervals. Although it is formed in a similar manner, it can be formed in the same manner as a known slip stopper such as a plurality of concave grooves (not shown) or concaves and convex portions (not shown).

In this embodiment, two actuating plates 2 and 2 having the same shape are butted against each other at the thick portions 10 and 10 at the rear end, and the thick portions 10 and 10 are fixed with a set screw 11. It is fixed by ... and is constructed integrally, but in addition, the whole can be integrally formed.

The locking claws 4 and 4 of the housing 3 are spaced from each other in the left-right direction (vertical direction in FIG. 2) from both ends in the lengthwise direction of the housing 3, as described in the section of the prior art. They extend rearward (to the right in FIGS. 1 and 2) in parallel, and locking portions 4a, 4a are symmetrically projected on the outer sides of the tips. At the tips of these locking portions 4a, 4a, inclined surfaces 4b, 4b that are inclined and descend from the outside to the inside of the tips.
Are symmetrically provided, and as a result, they are formed so as to be fitted and locked by being pushed into the engaging holes 14 formed in the mounting member 13.

In order to pull out the housing 3 from the connector board 12 for the printed circuit board by using the tool 1 having the above-mentioned structure, as shown in FIGS. Insert the pieces 5 and 5 along the outer sides of the locking claws 4 and 4 of the housing 3, and attach the holding pieces 5 and 5 to the mounting bracket 13.
When the outer sides of the central portions of the pair of actuating plates 2 and 2 are pressed toward the inner sides in a state of abutting against the front surface, the actuating plates 2 and 2 oppose each other from the rear end side against the spring property. By being bent, the holding pieces 5, 5 are pressed by the pressing portions 6, 6 on the inner sides of the tips, and the locking portions 4 a, 4 a of the locking portions 4, 4 of the housing 13 are formed.
Press inward near.

As a result, the locking pieces 4 and 4 are bent inwardly in opposition to the spring property, so that the locking portions 4a,
4a is disengaged from the inner periphery of the opening of the engagement hole 14 in the mounting bracket 13. Therefore, if the pulling operation is performed to the front (to the left in FIGS. 2 and 3) while continuously pressing both the operating plates 2 and 2, the locking portions 4a and 4a of the locking claws 4 and 4 will cause the locking claws 14 to move. The housing 3 can be pulled out from the connector board 12 for the printed circuit board. 2 and 3, 15 ... Shows terminals.

[0026]

Since the present invention is constructed as described above, the housing mounted on the mounting bracket of the connector board for the printed circuit board by the locking claws, and the holding piece at the tip of the locking claws can be used as the locking claws. It can be pulled out easily with one touch by inserting it on the outside and pressing both operating plates from both sides.

Further, the narrow holding piece allows the housings to be inserted into a narrow space between the housings so that only the desired locking claws can be surely pressed and deformed. When the both actuating plates are pressed from both sides by the reinforcing portion, the pressed portion does not bend, so that a large force for pressing and deforming the locking claw can be applied to the tip of the holding piece. The housing can be reliably pulled out.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a housing extracting tool according to the present invention.

FIG. 2 is a plan view showing a partially cross-sectional view of a usage state of the extraction tool.

FIG. 3 is a side view showing a partial cross section of a state of use of the extraction tool.

FIG. 4 is a side view showing a partially sectional view of a mounting state of the housing with respect to the connector board for a printed circuit board.

5 is a cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

 2, 2 A pair of operating plates 3 Housing 4, 4 A pair of locking claws 5, 5 A pair of holding pieces 6 A holding portion 7 Reinforcing portion 8 Non-slip A A distance between a pair of operating plates

Claims (1)

[Scope of utility model registration request] 1. A pair of actuating plates, which are made of an insulating material having a spring property and have a narrow width holding piece having a locking claw pressing portion of a housing provided opposite to and projecting from the inside of the leading end, are provided at the leading end of the widening end. The two holding pieces are arranged side by side with a certain interval so that they can be freely opened and closed.
A housing extraction tool, characterized in that a reinforcing portion such as a rib is formed near the tips of both the working plates.